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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.13384">arXiv:2409.13384</a> <span> [<a href="https://arxiv.org/pdf/2409.13384">pdf</a>, <a href="https://arxiv.org/format/2409.13384">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevMaterials.8.104802">10.1103/PhysRevMaterials.8.104802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Probing enhanced superconductivity in van der Waals polytypes of V$_x$TaS$_2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Pudelko%2C+W+R">Wojciech R. Pudelko</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+H">Huanlong Liu</a>, <a href="/search/cond-mat?searchtype=author&query=Petocchi%2C+F">Francesco Petocchi</a>, <a href="/search/cond-mat?searchtype=author&query=Li%2C+H">Hang Li</a>, <a href="/search/cond-mat?searchtype=author&query=Guedes%2C+E+B">Eduardo Bonini Guedes</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">Julia K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=von+Arx%2C+K">Karin von Arx</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Wagner%2C+R+C">Ron Cohn Wagner</a>, <a href="/search/cond-mat?searchtype=author&query=Polley%2C+C+M">Craig M. Polley</a>, <a href="/search/cond-mat?searchtype=author&query=Leandersson%2C+M">Mats Leandersson</a>, <a href="/search/cond-mat?searchtype=author&query=Osiecki%2C+J">Jacek Osiecki</a>, <a href="/search/cond-mat?searchtype=author&query=Thiagarajan%2C+B">Balasubramanian Thiagarajan</a>, <a href="/search/cond-mat?searchtype=author&query=Radovi%C4%87%2C+M">Milan Radovi膰</a>, <a href="/search/cond-mat?searchtype=author&query=Werner%2C+P">Philipp Werner</a>, <a href="/search/cond-mat?searchtype=author&query=Schilling%2C+A">Andreas Schilling</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">Johan Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Plumb%2C+N+C">Nicholas C. Plumb</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.13384v2-abstract-short" style="display: inline;"> Layered transition metal dichalcogenides (TMDs) stabilize in multiple structural forms with profoundly distinct and exotic electronic phases. Interfacing different layer types is a promising route to manipulate TMDs' properties, not only as a means to engineer quantum devices, but also as a route to explore fundamental physics in complex matter. Here we use angle-resolved photoemission (ARPES) to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.13384v2-abstract-full').style.display = 'inline'; document.getElementById('2409.13384v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.13384v2-abstract-full" style="display: none;"> Layered transition metal dichalcogenides (TMDs) stabilize in multiple structural forms with profoundly distinct and exotic electronic phases. Interfacing different layer types is a promising route to manipulate TMDs' properties, not only as a means to engineer quantum devices, but also as a route to explore fundamental physics in complex matter. Here we use angle-resolved photoemission (ARPES) to investigate a strong layering-dependent enhancement of superconductivity in TaS$_2$, in which the superconducting transition temperature, $T_c$, of its $2H$ structural phase is nearly tripled when insulating $1T$ layers are inserted into the system. The study is facilitated by a novel vanadium-intercalation approach to synthesizing various TaS$_2$ polytypes, which improves the quality of ARPES data while leaving key aspects of the electronic structure and properties intact. The spectra show the clear opening of the charge density wave gap in the pure $2H$ phase and its suppression when $1T$ layers are introduced to the system. Moreover, in the mixed-layer $4Hb$ system, we observe a strongly momentum-anisotropic increase in electron-phonon coupling near the Fermi level relative to the $2H$ phase. Both phenomena help to account for the increased $T_c$ in mixed $2H$/$1T$ layer structures. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.13384v2-abstract-full').style.display = 'none'; document.getElementById('2409.13384v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.15062">arXiv:2406.15062</a> <span> [<a href="https://arxiv.org/pdf/2406.15062">pdf</a>, <a href="https://arxiv.org/format/2406.15062">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> </div> <p class="title is-5 mathjax"> Decoupling of Static and Dynamic Charge Correlations revealed by Uniaxial Strain in a Cuprate Superconductor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Martinelli%2C+L">L. Martinelli</a>, <a href="/search/cond-mat?searchtype=author&query=Bia%C5%82o%2C+I">I. Bia艂o</a>, <a href="/search/cond-mat?searchtype=author&query=Hong%2C+X">X. Hong</a>, <a href="/search/cond-mat?searchtype=author&query=Oppliger%2C+J">J. Oppliger</a>, <a href="/search/cond-mat?searchtype=author&query=Lin%2C+C">C. Lin</a>, <a href="/search/cond-mat?searchtype=author&query=Schaller%2C+T">T. Schaller</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Fischer%2C+M+H">M. H. Fischer</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">N. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Novikov%2C+D+V">D. V. Novikov</a>, <a href="/search/cond-mat?searchtype=author&query=Khadiev%2C+A">A. Khadiev</a>, <a href="/search/cond-mat?searchtype=author&query=Weschke%2C+E">E. Weschke</a>, <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">J. Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Agrestini%2C+S">S. Agrestini</a>, <a href="/search/cond-mat?searchtype=author&query=Garcia-Fernandez%2C+M">M. Garcia-Fernandez</a>, <a href="/search/cond-mat?searchtype=author&query=Zhou%2C+K">Ke-Jin Zhou</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.15062v3-abstract-short" style="display: inline;"> We use uniaxial strain in combination with ultra-high-resolution Resonant Inelastic X-ray Scattering (RIXS) at the oxygen K- and copper L3-edges to study the excitations stemming from the charge ordering wave vector in La1.875Sr0.125CuO4. By detwinning stripe ordering, we demonstrate that the optical phonon anomalies do not show any stripe anisotropy. The low-energy charge excitations also retain… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.15062v3-abstract-full').style.display = 'inline'; document.getElementById('2406.15062v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.15062v3-abstract-full" style="display: none;"> We use uniaxial strain in combination with ultra-high-resolution Resonant Inelastic X-ray Scattering (RIXS) at the oxygen K- and copper L3-edges to study the excitations stemming from the charge ordering wave vector in La1.875Sr0.125CuO4. By detwinning stripe ordering, we demonstrate that the optical phonon anomalies do not show any stripe anisotropy. The low-energy charge excitations also retain an in-plane four-fold symmetry. As such, we find that both phonon and charge excitations are decoupled entirely from the strength of static charge ordering. The almost isotropic character of charge excitations is indicative of a quantum critical behaviour and remains a possible source for the strange metal properties found in the normal state of cuprate superconductors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.15062v3-abstract-full').style.display = 'none'; document.getElementById('2406.15062v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.17795">arXiv:2404.17795</a> <span> [<a href="https://arxiv.org/pdf/2404.17795">pdf</a>, <a href="https://arxiv.org/format/2404.17795">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s43246-024-00729-4">10.1038/s43246-024-00729-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Discovery of Giant Unit-Cell Super-Structure in the Infinite-Layer Nickelate PrNiO$_2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Oppliger%2C+J">J. Oppliger</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Dippel%2C+A+-">A. -C. Dippel</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Gutowski%2C+O">O. Gutowski</a>, <a href="/search/cond-mat?searchtype=author&query=Ren%2C+X">X. Ren</a>, <a href="/search/cond-mat?searchtype=author&query=Zhou%2C+X+J">X. J. Zhou</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+Z">Z. Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Frison%2C+R">R. Frison</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Martinelli%2C+L">L. Martinelli</a>, <a href="/search/cond-mat?searchtype=author&query=Bia%C5%82o%2C+I">I. Bia艂o</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.17795v1-abstract-short" style="display: inline;"> Spectacular quantum phenomena such as superconductivity often emerge in flat-band systems where Coulomb interactions overpower electron kinetics. Engineering strategies for flat-band physics is therefore of great importance. Here, using high-energy grazing-incidence x-ray diffraction, we demonstrate how in-situ temperature annealing of the infinite-layer nickelate PrNiO$_2$ induces a giant superla… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.17795v1-abstract-full').style.display = 'inline'; document.getElementById('2404.17795v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.17795v1-abstract-full" style="display: none;"> Spectacular quantum phenomena such as superconductivity often emerge in flat-band systems where Coulomb interactions overpower electron kinetics. Engineering strategies for flat-band physics is therefore of great importance. Here, using high-energy grazing-incidence x-ray diffraction, we demonstrate how in-situ temperature annealing of the infinite-layer nickelate PrNiO$_2$ induces a giant superlattice structure. The annealing effect has a maximum well above room temperature. By covering a large scattering volume, we show a rare period-six in-plane (bi-axial) symmetry and a period-four symmetry in the out-of-plane direction. This giant unit-cell superstructure likely stems from ordering of diffusive oxygen. The stability of this superlattice structure suggests a connection to an energetically favorable electronic state of matter. As such, our study provides a new pathway - different from Moir茅 structures - to ultra-small Brillouin zone electronics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.17795v1-abstract-full').style.display = 'none'; document.getElementById('2404.17795v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Main: 7 pages, 4 figures. Supplementary: 2 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Commun Mater 6, 3 (2025) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.16219">arXiv:2402.16219</a> <span> [<a href="https://arxiv.org/pdf/2402.16219">pdf</a>, <a href="https://arxiv.org/format/2402.16219">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> </div> <p class="title is-5 mathjax"> Charge orders with distinct magnetic response in a prototypical kagome superconductor LaRu$_{3}$Si$_{2}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Mielke%2C+C">C. Mielke III</a>, <a href="/search/cond-mat?searchtype=author&query=Sazgari%2C+V">V. Sazgari</a>, <a href="/search/cond-mat?searchtype=author&query=Plokhikh%2C+I">I. Plokhikh</a>, <a href="/search/cond-mat?searchtype=author&query=Shin%2C+S">S. Shin</a>, <a href="/search/cond-mat?searchtype=author&query=Nakamura%2C+H">H. Nakamura</a>, <a href="/search/cond-mat?searchtype=author&query=Graham%2C+J+N">J. N. Graham</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Bialo%2C+I">I. Bialo</a>, <a href="/search/cond-mat?searchtype=author&query=Garbarino%2C+G">G. Garbarino</a>, <a href="/search/cond-mat?searchtype=author&query=Das%2C+D">D. Das</a>, <a href="/search/cond-mat?searchtype=author&query=Medarde%2C+M">M. Medarde</a>, <a href="/search/cond-mat?searchtype=author&query=Bartkowiak%2C+M">M. Bartkowiak</a>, <a href="/search/cond-mat?searchtype=author&query=Islam%2C+S+S">S. S. Islam</a>, <a href="/search/cond-mat?searchtype=author&query=Khasanov%2C+R">R. Khasanov</a>, <a href="/search/cond-mat?searchtype=author&query=Luetkens%2C+H">H. Luetkens</a>, <a href="/search/cond-mat?searchtype=author&query=Hasan%2C+M+Z">M. Z. Hasan</a>, <a href="/search/cond-mat?searchtype=author&query=Pomjakushina%2C+E">E. Pomjakushina</a>, <a href="/search/cond-mat?searchtype=author&query=Yin%2C+J+-">J. -X. Yin</a>, <a href="/search/cond-mat?searchtype=author&query=Fischer%2C+M+H">M. H. Fischer</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Neupert%2C+T">T. Neupert</a>, <a href="/search/cond-mat?searchtype=author&query=Nakatsuji%2C+S">S. Nakatsuji</a>, <a href="/search/cond-mat?searchtype=author&query=Wehinger%2C+B">B. Wehinger</a>, <a href="/search/cond-mat?searchtype=author&query=Gawryluk%2C+D+J">D. J. Gawryluk</a>, <a href="/search/cond-mat?searchtype=author&query=Guguchia%2C+Z">Z. Guguchia</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.16219v2-abstract-short" style="display: inline;"> The kagome lattice has emerged as a promising platform for hosting unconventional chiral charge order at high temperatures. Notably, in LaRu$_{3}$Si$_{2}$, a room-temperature charge-ordered state with a propagation vector of ($\frac{1}{4}$,~0,~0) has been recently identified. However, understanding the interplay between this charge order and superconductivity, particularly with respect to time-rev… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16219v2-abstract-full').style.display = 'inline'; document.getElementById('2402.16219v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.16219v2-abstract-full" style="display: none;"> The kagome lattice has emerged as a promising platform for hosting unconventional chiral charge order at high temperatures. Notably, in LaRu$_{3}$Si$_{2}$, a room-temperature charge-ordered state with a propagation vector of ($\frac{1}{4}$,~0,~0) has been recently identified. However, understanding the interplay between this charge order and superconductivity, particularly with respect to time-reversal-symmetry breaking, remains elusive. In this study, we employ single crystal X-ray diffraction, magnetotransport, and muon-spin rotation experiments to investigate the charge order and its electronic and magnetic responses in LaRu$_{3}$Si$_{2}$ across a wide temperature range down to the superconducting state. Our findings reveal the emergence of a charge order with a propagation vector of ($\frac{1}{6}$,~0,~0) below $T_{\rm CO,2}$ ${\simeq}$ 80 K, coexisting with the previously identified room-temperature primary charge order ($\frac{1}{4}$,~0,~0). The primary charge-ordered state exhibits zero magnetoresistance. In contrast, the appearance of the secondary charge order at $T_{\rm CO,2}$ is accompanied by a notable magnetoresistance response and a pronounced temperature-dependent Hall effect, which experiences a sign reversal, switching from positive to negative below $T^{*}$ ${\simeq}$ 35 K. Intriguingly, we observe an enhancement in the internal field width sensed by the muon ensemble below $T^{*}$ ${\simeq}$ 35 K. Moreover, the muon spin relaxation rate exhibits a substantial increase upon the application of an external magnetic field below $T_{\rm CO,2}$ ${\simeq}$ 80 K. Our results highlight the coexistence of two distinct types of charge order in LaRu$_{3}$Si$_{2}$ within the correlated kagome lattice, namely a non-magnetic charge order ($\frac{1}{4}$,~0,~0) below $T_{\rm co,1}$ ${\simeq}$ 400 K and a time-reversal-symmetry-breaking charge order below $T_{\rm CO,2}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16219v2-abstract-full').style.display = 'none'; document.getElementById('2402.16219v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.16089">arXiv:2402.16089</a> <span> [<a href="https://arxiv.org/pdf/2402.16089">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41467-024-53737-w">10.1038/s41467-024-53737-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Uniaxial strain tuning of charge modulation and singularity in a kagome superconductor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Lin%2C+C">Chun Lin</a>, <a href="/search/cond-mat?searchtype=author&query=Consiglio%2C+A">Armando Consiglio</a>, <a href="/search/cond-mat?searchtype=author&query=Forslund%2C+O+K">Ola Kenji Forslund</a>, <a href="/search/cond-mat?searchtype=author&query=Kuspert%2C+J">Julia Kuspert</a>, <a href="/search/cond-mat?searchtype=author&query=Denner%2C+M+M">M. Michael Denner</a>, <a href="/search/cond-mat?searchtype=author&query=Lei%2C+H">Hechang Lei</a>, <a href="/search/cond-mat?searchtype=author&query=Louat%2C+A">Alex Louat</a>, <a href="/search/cond-mat?searchtype=author&query=Watson%2C+M+D">Matthew D. Watson</a>, <a href="/search/cond-mat?searchtype=author&query=Kim%2C+T+K">Timur K. Kim</a>, <a href="/search/cond-mat?searchtype=author&query=Cacho%2C+C">Cephise Cacho</a>, <a href="/search/cond-mat?searchtype=author&query=Carbone%2C+D">Dina Carbone</a>, <a href="/search/cond-mat?searchtype=author&query=Leandersson%2C+M">Mats Leandersson</a>, <a href="/search/cond-mat?searchtype=author&query=Polley%2C+C">Craig Polley</a>, <a href="/search/cond-mat?searchtype=author&query=Balasubramanian%2C+T">Thiagarajan Balasubramanian</a>, <a href="/search/cond-mat?searchtype=author&query=Di+Sante%2C+D">Domenico Di Sante</a>, <a href="/search/cond-mat?searchtype=author&query=Thomale%2C+R">Ronny Thomale</a>, <a href="/search/cond-mat?searchtype=author&query=Guguchia%2C+Z">Zurab Guguchia</a>, <a href="/search/cond-mat?searchtype=author&query=Sangiovanni%2C+G">Giorgio Sangiovanni</a>, <a href="/search/cond-mat?searchtype=author&query=Neupert%2C+T">Titus Neupert</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">Johan Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.16089v2-abstract-short" style="display: inline;"> Tunable quantum materials hold great potential for applications. Of special interest are materials in which small lattice strain induces giant electronic responses. The kagome compounds AV3Sb5 (A = K, Rb, Cs) provide a testbed for such singular electronic states. In this study, through angle-resolved photoemission spectroscopy, we provide comprehensive spectroscopic measurements of the giant respo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16089v2-abstract-full').style.display = 'inline'; document.getElementById('2402.16089v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.16089v2-abstract-full" style="display: none;"> Tunable quantum materials hold great potential for applications. Of special interest are materials in which small lattice strain induces giant electronic responses. The kagome compounds AV3Sb5 (A = K, Rb, Cs) provide a testbed for such singular electronic states. In this study, through angle-resolved photoemission spectroscopy, we provide comprehensive spectroscopic measurements of the giant responses induced by compressive and tensile strains on the charge-density-wave (CDW) order parameter and high-order van Hove singularity (HO-VHS) in CsV3Sb5. We observe a tripling of the CDW gap magnitudes with ~1% strain, accompanied by the changes of both energy and mass of the saddle-point fermions. Our results reveal an anticorrelation between the unconventional CDW order parameter and the mass of a HO-VHS, and highlight the role of the latter in the superconducting pairing. The giant electronic responses uncover a rich strain tunability of the versatile kagome system in studying quantum interplays under lattice perturbations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16089v2-abstract-full').style.display = 'none'; document.getElementById('2402.16089v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nat. Commun. 15, 10466 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.16980">arXiv:2401.16980</a> <span> [<a href="https://arxiv.org/pdf/2401.16980">pdf</a>, <a href="https://arxiv.org/format/2401.16980">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevB.109.054516">10.1103/PhysRevB.109.054516 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Two-Dimensional Phase-Fluctuating Superconductivity in Bulk-Crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Chen%2C+C+S">C. S. Chen</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Bia%C5%82o%2C+I">I. Bia艂o</a>, <a href="/search/cond-mat?searchtype=author&query=Mueller%2C+J">J. Mueller</a>, <a href="/search/cond-mat?searchtype=author&query=Chen%2C+K+W">K. W. Chen</a>, <a href="/search/cond-mat?searchtype=author&query=Zou%2C+M+Y">M. Y. Zou</a>, <a href="/search/cond-mat?searchtype=author&query=Mazzone%2C+D+G">D. G. Mazzone</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">D. Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Tanaka%2C+K">K. Tanaka</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Shu%2C+L">Lei Shu</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.16980v2-abstract-short" style="display: inline;"> We present a combined growth and transport study of superconducting single-crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$. Evidence of two-dimensional superconductivity with significant phase fluctuations of preformed Cooper pairs preceding the superconducting transition is reported. This result is based on three key observations. (1) The resistive superconducting transition temperature $T_c$ (defined by… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.16980v2-abstract-full').style.display = 'inline'; document.getElementById('2401.16980v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.16980v2-abstract-full" style="display: none;"> We present a combined growth and transport study of superconducting single-crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$. Evidence of two-dimensional superconductivity with significant phase fluctuations of preformed Cooper pairs preceding the superconducting transition is reported. This result is based on three key observations. (1) The resistive superconducting transition temperature $T_c$ (defined by resistivity $蟻\rightarrow 0$) increases with increasing disorder. (2) As $T\rightarrow T_c$, the conductivity diverges significantly faster than what is expected from Gaussian fluctuations in two and three dimensions. (3) Non-Ohmic resistance behavior is observed in the superconducting state. Altogether, our observations are consistent with a temperature regime of phase-fluctuating superconductivity. The crystal structure with magnetic ordering tendencies in the NdO$_{0.5}$F$_{0.5}$ layers and (super)conductivity in the BiS$_2$ layers is likely responsible for the two-dimensional phase fluctuations. As such, NdO$_{0.5}$F$_{0.5}$BiS$_2$ falls into the class of unconventional ``laminar" bulk superconductors that include cuprate materials and 4Hb-TaS$_2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.16980v2-abstract-full').style.display = 'none'; document.getElementById('2401.16980v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.03650">arXiv:2312.03650</a> <span> [<a href="https://arxiv.org/pdf/2312.03650">pdf</a>, <a href="https://arxiv.org/format/2312.03650">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s42005-024-01699-2">10.1038/s42005-024-01699-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Engineering Phase Competition Between Stripe Order and Superconductivity in La$_{1.88}$Sr$_{0.12}$CuO$_4$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Bia%C5%82o%2C+I">I. Bia艂o</a>, <a href="/search/cond-mat?searchtype=author&query=Frison%2C+R">R. Frison</a>, <a href="/search/cond-mat?searchtype=author&query=Morawietz%2C+A">A. Morawietz</a>, <a href="/search/cond-mat?searchtype=author&query=Martinelli%2C+L">L. Martinelli</a>, <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">J. Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">D. Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">N. B. Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=Mazzone%2C+D+G">D. G. Mazzone</a>, <a href="/search/cond-mat?searchtype=author&query=Simutis%2C+G">G. Simutis</a>, <a href="/search/cond-mat?searchtype=author&query=Turrini%2C+A+A">A. A. Turrini</a>, <a href="/search/cond-mat?searchtype=author&query=Thomarat%2C+L">L. Thomarat</a>, <a href="/search/cond-mat?searchtype=author&query=Tam%2C+D+W">D. W. Tam</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">N. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2312.03650v2-abstract-short" style="display: inline;"> Unconventional superconductivity often couples to other electronic orders in a cooperative or competing fashion. Identifying external stimuli that tune between these two limits is of fundamental interest. Here, we show that strain perpendicular to the copper-oxide planes couples directly to the competing interaction between charge stripe order and superconductivity in La$_{1.88}$Sr$_{0.12}$CuO… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03650v2-abstract-full').style.display = 'inline'; document.getElementById('2312.03650v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.03650v2-abstract-full" style="display: none;"> Unconventional superconductivity often couples to other electronic orders in a cooperative or competing fashion. Identifying external stimuli that tune between these two limits is of fundamental interest. Here, we show that strain perpendicular to the copper-oxide planes couples directly to the competing interaction between charge stripe order and superconductivity in La$_{1.88}$Sr$_{0.12}$CuO$_4$ (LSCO). Compressive $c$-axis pressure amplifies stripe order within the superconducting state, while having no impact on the normal state. By contrast, strain dramatically diminishes the magnetic field enhancement of stripe order in the superconducting state. These results suggest that $c$-axis strain acts as tuning parameter of the competing interaction between charge stripe order and superconductivity. This interpretation implies a uniaxial pressure-induced ground state in which the competition between charge order and superconductivity is reduced. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03650v2-abstract-full').style.display = 'none'; document.getElementById('2312.03650v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Commun Phys 7, 225 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.09255">arXiv:2309.09255</a> <span> [<a href="https://arxiv.org/pdf/2309.09255">pdf</a>, <a href="https://arxiv.org/format/2309.09255">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s42005-024-01673-y">10.1038/s42005-024-01673-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Charge order above room-temperature in a prototypical kagome superconductor La(Ru$_{1-x}$Fe$_{x}$)$_{3}$Si$_{2}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Plokhikh%2C+I">I. Plokhikh</a>, <a href="/search/cond-mat?searchtype=author&query=Mielke%2C+C">C. Mielke III</a>, <a href="/search/cond-mat?searchtype=author&query=Nakamura%2C+H">H. Nakamura</a>, <a href="/search/cond-mat?searchtype=author&query=Petricek%2C+V">V. Petricek</a>, <a href="/search/cond-mat?searchtype=author&query=Qin%2C+Y">Y. Qin</a>, <a href="/search/cond-mat?searchtype=author&query=Sazgari%2C+V">V. Sazgari</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Bialo%2C+I">I. Bialo</a>, <a href="/search/cond-mat?searchtype=author&query=Shin%2C+S">S. Shin</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Medarde%2C+M">M. Medarde</a>, <a href="/search/cond-mat?searchtype=author&query=Amato%2C+A">A. Amato</a>, <a href="/search/cond-mat?searchtype=author&query=Khasanov%2C+R">R. Khasanov</a>, <a href="/search/cond-mat?searchtype=author&query=Luetkens%2C+H">H. Luetkens</a>, <a href="/search/cond-mat?searchtype=author&query=Fischer%2C+M+H">M. H. Fischer</a>, <a href="/search/cond-mat?searchtype=author&query=Hasan%2C+M+Z">M. Z. Hasan</a>, <a href="/search/cond-mat?searchtype=author&query=Yin%2C+J+-">J. -X. Yin</a>, <a href="/search/cond-mat?searchtype=author&query=Neupert%2C+T">T. Neupert</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Xu%2C+G">G. Xu</a>, <a href="/search/cond-mat?searchtype=author&query=Nakatsuji%2C+S">S. Nakatsuji</a>, <a href="/search/cond-mat?searchtype=author&query=Pomjakushina%2C+E">E. Pomjakushina</a>, <a href="/search/cond-mat?searchtype=author&query=Gawryluk%2C+D+J">D. J. Gawryluk</a>, <a href="/search/cond-mat?searchtype=author&query=Guguchia%2C+Z">Z. Guguchia</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2309.09255v1-abstract-short" style="display: inline;"> The kagome lattice is an intriguing and rich platform for discovering, tuning and understanding the diverse phases of quantum matter, which is a necessary premise for utilizing quantum materials in all areas of modern and future electronics in a controlled and optimal way. The system LaRu$_{3}$Si$_{2}$ was shown to exhibit typical kagome band structure features near the Fermi energy formed by the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.09255v1-abstract-full').style.display = 'inline'; document.getElementById('2309.09255v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.09255v1-abstract-full" style="display: none;"> The kagome lattice is an intriguing and rich platform for discovering, tuning and understanding the diverse phases of quantum matter, which is a necessary premise for utilizing quantum materials in all areas of modern and future electronics in a controlled and optimal way. The system LaRu$_{3}$Si$_{2}$ was shown to exhibit typical kagome band structure features near the Fermi energy formed by the Ru-$dz^{2}$ orbitals and the highest superconducting transition temperature $T_{\rm c}$ ${\simeq}$ 7K among the kagome-lattice materials. However, the effect of electronic correlations on the normal state properties remains elusive. Here, we report the discovery of charge order in La(Ru$_{1-x}$Fe$_{x}$)$_{3}$Si$_{2}$ ($x$ = 0, 0.01, 0.05) beyond room-temperature. Namely, single crystal X-ray diffraction reveals charge order with a propagation vector of ($\frac{1}{4}$,0,0) below $T_{\rm CO-I}$ ${\simeq}$ 400K in all three compounds. At lower temperatures, we see the appearance of a second set of charge order peaks with a propagation vector of ($\frac{1}{6}$,0,0). The introduction of Fe, which is known to quickly suppress superconductivity, does not drastically alter the onset temperature for charge order. Instead, it broadens the scattered intensity such that diffuse scattering appears at the same onset temperature, however does not coalesce into sharp Bragg diffraction peaks until much lower in temperature. Our results present the first example of a charge ordered state at or above room temperature in the correlated kagome lattice with bulk superconductivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.09255v1-abstract-full').style.display = 'none'; document.getElementById('2309.09255v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Communications Physics 7, 182 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.07015">arXiv:2302.07015</a> <span> [<a href="https://arxiv.org/pdf/2302.07015">pdf</a>, <a href="https://arxiv.org/format/2302.07015">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1073/pnas.2303423120">10.1073/pnas.2303423120 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Designing the stripe-ordered cuprate phase diagram through uniaxial-stress </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Guguchia%2C+Z">Z. Guguchia</a>, <a href="/search/cond-mat?searchtype=author&query=Das%2C+D">D. Das</a>, <a href="/search/cond-mat?searchtype=author&query=Simutis%2C+G">G. Simutis</a>, <a href="/search/cond-mat?searchtype=author&query=Adachi%2C+T">T. Adachi</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Kitajima%2C+N">N. Kitajima</a>, <a href="/search/cond-mat?searchtype=author&query=Elender%2C+M">M. Elender</a>, <a href="/search/cond-mat?searchtype=author&query=Grinenko%2C+V">V. Grinenko</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%BCller%2C+M">M. M眉ller</a>, <a href="/search/cond-mat?searchtype=author&query=Mielke%2C+C">C. Mielke III</a>, <a href="/search/cond-mat?searchtype=author&query=Hotz%2C+F">F. Hotz</a>, <a href="/search/cond-mat?searchtype=author&query=Mudry%2C+C">C. Mudry</a>, <a href="/search/cond-mat?searchtype=author&query=Baines%2C+C">C. Baines</a>, <a href="/search/cond-mat?searchtype=author&query=Bartkowiak%2C+M">M. Bartkowiak</a>, <a href="/search/cond-mat?searchtype=author&query=Shiroka%2C+T">T. Shiroka</a>, <a href="/search/cond-mat?searchtype=author&query=Koike%2C+Y">Y. Koike</a>, <a href="/search/cond-mat?searchtype=author&query=Amato%2C+A">A. Amato</a>, <a href="/search/cond-mat?searchtype=author&query=Hicks%2C+C+W">C. W. Hicks</a>, <a href="/search/cond-mat?searchtype=author&query=Gu%2C+G+D">G. D. Gu</a>, <a href="/search/cond-mat?searchtype=author&query=Tranquada%2C+J+M">J. M. Tranquada</a>, <a href="/search/cond-mat?searchtype=author&query=Klauss%2C+H+-">H. -H. Klauss</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J+J">J. J. Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.07015v1-abstract-short" style="display: inline;"> The ability to efficiently control charge and spin in the cuprate high-temperature superconductors is crucial for fundamental research and underpins technological development. Here, we explore the tunability of magnetism, superconductivity and crystal structure in the stripe phase of the cuprate La_2-xBa_xCuO_4, with x = 0.115 and 0.135, by employing temperature-dependent (down to 400 mK) muon-spi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.07015v1-abstract-full').style.display = 'inline'; document.getElementById('2302.07015v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.07015v1-abstract-full" style="display: none;"> The ability to efficiently control charge and spin in the cuprate high-temperature superconductors is crucial for fundamental research and underpins technological development. Here, we explore the tunability of magnetism, superconductivity and crystal structure in the stripe phase of the cuprate La_2-xBa_xCuO_4, with x = 0.115 and 0.135, by employing temperature-dependent (down to 400 mK) muon-spin rotation and AC susceptibility, as well as X-ray scattering experiments under compressive uniaxial stress in the CuO_2 plane. A sixfold increase of the 3-dimensional (3D) superconducting critical temperature T_c and a full recovery of the 3D phase coherence is observed in both samples with the application of extremely low uniaxial stress of 0.1 GPa. This finding demonstrates the removal of the well-known 1/8-anomaly of cuprates by uniaxial stress. On the other hand, the spin-stripe order temperature as well as the magnetic fraction at 400 mK show only a modest decrease under stress. Moreover, the onset temperatures of 3D superconductivity and spin-stripe order are very similar in the large stress regime. However, a substantial decrease of the magnetic volume fraction and a full suppression of the low-temperature tetragonal structure is found at elevated temperatures, which is a necessary condition for the development of the 3D superconducting phase with optimal T_c. Our results evidence a remarkable cooperation between the long-range static spin-stripe order and the underlying crystalline order with the three-dimensional fully coherent superconductivity. Overall, these results suggest that the stripe- and the SC order may have a common physical mechanism. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.07015v1-abstract-full').style.display = 'none'; document.getElementById('2302.07015v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 5 figures. This work builds on our earlier findings on LBCO, arXiv:2008.01159, and substantially expands it</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Proc. Natl. Acd. Sci. U.S.A 121(1), e2303423120 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.09247">arXiv:2209.09247</a> <span> [<a href="https://arxiv.org/pdf/2209.09247">pdf</a>, <a href="https://arxiv.org/format/2209.09247">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Image and Video Processing">eess.IV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s42256-024-00790-1">10.1038/s42256-024-00790-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Weak-signal extraction enabled by deep-neural-network denoising of diffraction data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Oppliger%2C+J">Jens Oppliger</a>, <a href="/search/cond-mat?searchtype=author&query=Denner%2C+M+M">M. Michael Denner</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">Julia K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Frison%2C+R">Ruggero Frison</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Morawietz%2C+A">Alexander Morawietz</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">Oleh Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Dippel%2C+A">Ann-Christin Dippel</a>, <a href="/search/cond-mat?searchtype=author&query=von+Zimmermann%2C+M">Martin von Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Bia%C5%82o%2C+I">Izabela Bia艂o</a>, <a href="/search/cond-mat?searchtype=author&query=Martinelli%2C+L">Leonardo Martinelli</a>, <a href="/search/cond-mat?searchtype=author&query=Fauqu%C3%A9%2C+B">Beno卯t Fauqu茅</a>, <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">Jaewon Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Garcia-Fernandez%2C+M">Mirian Garcia-Fernandez</a>, <a href="/search/cond-mat?searchtype=author&query=Zhou%2C+K">Ke-Jin Zhou</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">Niels B. Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">Tohru Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">Naoki Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">Migaku Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Natterer%2C+F+D">Fabian D. Natterer</a>, <a href="/search/cond-mat?searchtype=author&query=Fischer%2C+M+H">Mark H. Fischer</a>, <a href="/search/cond-mat?searchtype=author&query=Neupert%2C+T">Titus Neupert</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">Johan Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.09247v3-abstract-short" style="display: inline;"> Removal or cancellation of noise has wide-spread applications for imaging and acoustics. In every-day-life applications, denoising may even include generative aspects, which are unfaithful to the ground truth. For scientific use, however, denoising must reproduce the ground truth accurately. Here, we show how data can be denoised via a deep convolutional neural network such that weak signals appea… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.09247v3-abstract-full').style.display = 'inline'; document.getElementById('2209.09247v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.09247v3-abstract-full" style="display: none;"> Removal or cancellation of noise has wide-spread applications for imaging and acoustics. In every-day-life applications, denoising may even include generative aspects, which are unfaithful to the ground truth. For scientific use, however, denoising must reproduce the ground truth accurately. Here, we show how data can be denoised via a deep convolutional neural network such that weak signals appear with quantitative accuracy. In particular, we study X-ray diffraction on crystalline materials. We demonstrate that weak signals stemming from charge ordering, insignificant in the noisy data, become visible and accurate in the denoised data. This success is enabled by supervised training of a deep neural network with pairs of measured low- and high-noise data. We demonstrate that using artificial noise does not yield such quantitatively accurate results. Our approach thus illustrates a practical strategy for noise filtering that can be applied to challenging acquisition problems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.09247v3-abstract-full').style.display = 'none'; document.getElementById('2209.09247v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 10 figures; extended study, additional supplementary information, results unchanged</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Machine Intelligence (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.13194">arXiv:2207.13194</a> <span> [<a href="https://arxiv.org/pdf/2207.13194">pdf</a>, <a href="https://arxiv.org/format/2207.13194">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0114892">10.1063/5.0114892 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> In-situ uniaxial pressure cell for X-ray and neutron scattering experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Simutis%2C+G">G. Simutis</a>, <a href="/search/cond-mat?searchtype=author&query=Bollhalder%2C+A">A. Bollhalder</a>, <a href="/search/cond-mat?searchtype=author&query=Zolliker%2C+M">M. Zolliker</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Das%2C+D">D. Das</a>, <a href="/search/cond-mat?searchtype=author&query=Van+Leeuwen%2C+F">F. Van Leeuwen</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Gutowski%2C+O">O. Gutowski</a>, <a href="/search/cond-mat?searchtype=author&query=Philippe%2C+J">J. Philippe</a>, <a href="/search/cond-mat?searchtype=author&query=Kracht%2C+T">T. Kracht</a>, <a href="/search/cond-mat?searchtype=author&query=Glaevecke%2C+P">P. Glaevecke</a>, <a href="/search/cond-mat?searchtype=author&query=Adachi%2C+T">T. Adachi</a>, <a href="/search/cond-mat?searchtype=author&query=Von+Zimmermann%2C+M">M. Von Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Van+Petegem%2C+S">S. Van Petegem</a>, <a href="/search/cond-mat?searchtype=author&query=Luetkens%2C+H">H. Luetkens</a>, <a href="/search/cond-mat?searchtype=author&query=Guguchia%2C+Z">Z. Guguchia</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Sassa%2C+Y">Y. Sassa</a>, <a href="/search/cond-mat?searchtype=author&query=Bartkowiak%2C+M">M. Bartkowiak</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2207.13194v1-abstract-short" style="display: inline;"> We present an in-situ uniaxial pressure device optimized for small angle X-ray and neutron scattering experiments at low-temperatures and high magnetic fields. A stepper motor generates force, which is transmitted to the sample via a rod with integrated transducer that continuously monitors the force. The device has been designed to generate forces up to 200 N in both compressive and tensile confi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.13194v1-abstract-full').style.display = 'inline'; document.getElementById('2207.13194v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.13194v1-abstract-full" style="display: none;"> We present an in-situ uniaxial pressure device optimized for small angle X-ray and neutron scattering experiments at low-temperatures and high magnetic fields. A stepper motor generates force, which is transmitted to the sample via a rod with integrated transducer that continuously monitors the force. The device has been designed to generate forces up to 200 N in both compressive and tensile configurations and a feedback control allows operating the system in a continuous-pressure mode as the temperature is changed. The uniaxial pressure device can be used for various instruments and multiple cryostats through simple and exchangeable adapters. It is compatible with multiple sample holders, which can be easily changed depending on the sample properties and the desired experiment and allow rapid sample changes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.13194v1-abstract-full').style.display = 'none'; document.getElementById('2207.13194v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Review of Scientific Instruments 94, 013906 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.07424">arXiv:2207.07424</a> <span> [<a href="https://arxiv.org/pdf/2207.07424">pdf</a>, <a href="https://arxiv.org/format/2207.07424">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevResearch.4.043015">10.1103/PhysRevResearch.4.043015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pseudogap Suppression by Competition with Superconductivity in La-Based Cuprates </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Wagner%2C+R+C">R. Cohn Wagner</a>, <a href="/search/cond-mat?searchtype=author&query=Lin%2C+C">C. Lin</a>, <a href="/search/cond-mat?searchtype=author&query=von+Arx%2C+K">K. von Arx</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Kramer%2C+K">K. Kramer</a>, <a href="/search/cond-mat?searchtype=author&query=Pudelko%2C+W+R">W. R. Pudelko</a>, <a href="/search/cond-mat?searchtype=author&query=Plumb%2C+N+C">N. C. Plumb</a>, <a href="/search/cond-mat?searchtype=author&query=Matt%2C+C+E">C. E. Matt</a>, <a href="/search/cond-mat?searchtype=author&query=Fatuzzo%2C+C+G">C. G. Fatuzzo</a>, <a href="/search/cond-mat?searchtype=author&query=Sutter%2C+D">D. Sutter</a>, <a href="/search/cond-mat?searchtype=author&query=Sassa%2C+Y">Y. Sassa</a>, <a href="/search/cond-mat?searchtype=author&query=Yan%2C+J+-">J. -Q. Yan</a>, <a href="/search/cond-mat?searchtype=author&query=Zhou%2C+J+-">J. -S. Zhou</a>, <a href="/search/cond-mat?searchtype=author&query=Goodenough%2C+J+B">J. B. Goodenough</a>, <a href="/search/cond-mat?searchtype=author&query=Pyon%2C+S">S. Pyon</a>, <a href="/search/cond-mat?searchtype=author&query=Takayama%2C+T">T. Takayama</a>, <a href="/search/cond-mat?searchtype=author&query=Takagi%2C+H">H. Takagi</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">N. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Hoesch%2C+M">M. Hoesch</a>, <a href="/search/cond-mat?searchtype=author&query=Cacho%2C+C">C. Cacho</a>, <a href="/search/cond-mat?searchtype=author&query=Kim%2C+T+K">T. K. Kim</a>, <a href="/search/cond-mat?searchtype=author&query=Horio%2C+M">M. Horio</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2207.07424v1-abstract-short" style="display: inline;"> We have carried out a comprehensive high-resolution angle-resolved photoemission spectroscopy (ARPES) study of the pseudogap interplay with superconductivity in La-based cuprates. The three systems La$_{2-x}$Sr$_x$CuO$_4$, La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$, and La$_{1.8-x}$Eu$_{0.2}$Sr$_x$CuO$_4$ display slightly different pseudogap critical points in the temperature versus doping phase diagram.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.07424v1-abstract-full').style.display = 'inline'; document.getElementById('2207.07424v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.07424v1-abstract-full" style="display: none;"> We have carried out a comprehensive high-resolution angle-resolved photoemission spectroscopy (ARPES) study of the pseudogap interplay with superconductivity in La-based cuprates. The three systems La$_{2-x}$Sr$_x$CuO$_4$, La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$, and La$_{1.8-x}$Eu$_{0.2}$Sr$_x$CuO$_4$ display slightly different pseudogap critical points in the temperature versus doping phase diagram. We have studied the pseudogap evolution into the superconducting state for doping concentrations just below the critical point. In this setting, near optimal doping for superconductivity and in the presence of the weakest possible pseudogap, we uncover how the pseudogap is partially suppressed inside the superconducting state. This conclusion is based on the direct observation of a reduced pseudogap energy scale and re-emergence of spectral weight suppressed by the pseudogap. Altogether these observations suggest that the pseudogap phenomenon in La-based cuprates is in competition with superconductivity for anti-nodal spectral weight. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.07424v1-abstract-full').style.display = 'none'; document.getElementById('2207.07424v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2204.02304">arXiv:2204.02304</a> <span> [<a href="https://arxiv.org/pdf/2204.02304">pdf</a>, <a href="https://arxiv.org/format/2204.02304">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s42005-022-01061-4">10.1038/s42005-022-01061-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Single domain stripe order in a high-temperature superconductor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Simutis%2C+G">G. Simutis</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">J. Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">D. Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Boehm%2C+M">M. Boehm</a>, <a href="/search/cond-mat?searchtype=author&query=Bouradot%2C+F">F. Bouradot</a>, <a href="/search/cond-mat?searchtype=author&query=Bertelsen%2C+M">M. Bertelsen</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+C+N">Ch. N. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+M">M. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%A5nsson%2C+M">M. M氓nsson</a>, <a href="/search/cond-mat?searchtype=author&query=Sassa%2C+Y">Y. Sassa</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">N. B. Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a>, <a href="/search/cond-mat?searchtype=author&query=Mazzone%2C+D+G">D. G. Mazzone</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2204.02304v1-abstract-short" style="display: inline;"> The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials. A model example is unconventional superconductivity, which is widely believed to arise from the coupling of electrons via spin excitations. In cuprate high-temperature superconductors, the interplay of charge and spin degrees… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.02304v1-abstract-full').style.display = 'inline'; document.getElementById('2204.02304v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2204.02304v1-abstract-full" style="display: none;"> The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials. A model example is unconventional superconductivity, which is widely believed to arise from the coupling of electrons via spin excitations. In cuprate high-temperature superconductors, the interplay of charge and spin degrees of freedom is also reflected in a zoo of charge and spin-density wave orders that are intertwined with superconductivity. A key question is whether the different types of density waves merely coexist or are indeed directly coupled. Here we use a novel neutron diffraction technique with superior beam-focusing that allows us to probe the subtle spin-density wave order in the prototypical high-temperature superconductor La1.88Sr0.12CuO4 under applied uniaxial pressure to demonstrate that it is immediately coupled with charge-density wave order. Our result shows that suitable models for high-temperature superconductivity must equally account for charge and spin degrees of freedom via uniaxial charge-spin stripe fluctuations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.02304v1-abstract-full').style.display = 'none'; document.getElementById('2204.02304v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Communications Physics volume 5, 296 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.09987">arXiv:2203.09987</a> <span> [<a href="https://arxiv.org/pdf/2203.09987">pdf</a>, <a href="https://arxiv.org/format/2203.09987">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41467-022-29465-4">10.1038/s41467-022-29465-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Uniaxial Pressure Induced Stripe Order Rotation in La$_{1.88}$Sr$_{0.12}$CuO$_4$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=von+Arx%2C+K">K. von Arx</a>, <a href="/search/cond-mat?searchtype=author&query=Mazzone%2C+D+G">D. G. Mazzone</a>, <a href="/search/cond-mat?searchtype=author&query=Mustafi%2C+S">S. Mustafi</a>, <a href="/search/cond-mat?searchtype=author&query=Horio%2C+M">M. Horio</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">J. Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">D. Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Wo%2C+H">H. Wo</a>, <a href="/search/cond-mat?searchtype=author&query=Zhao%2C+J">J. Zhao</a>, <a href="/search/cond-mat?searchtype=author&query=Zhang%2C+W">W. Zhang</a>, <a href="/search/cond-mat?searchtype=author&query=Asmara%2C+T+C">T. C. Asmara</a>, <a href="/search/cond-mat?searchtype=author&query=Sassa%2C+Y">Y. Sassa</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%A5nsson%2C+M">M. M氓nsson</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">N. B. Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">N. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Fischer%2C+M+H">M. H. Fischer</a>, <a href="/search/cond-mat?searchtype=author&query=Schmitt%2C+T">T. Schmitt</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.09987v1-abstract-short" style="display: inline;"> Static stripe order is detrimental to superconductivity. Yet, it has been proposed that transverse stripe fluctuations may enhance the inter-stripe Josephson coupling and thus promote superconductivity. Direct experimental studies of stripe dynamics, however, remain difficult. From a strong-coupling perspective, transverse stripe fluctuations are realized in the form of dynamic "kinks" -- sideways… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.09987v1-abstract-full').style.display = 'inline'; document.getElementById('2203.09987v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.09987v1-abstract-full" style="display: none;"> Static stripe order is detrimental to superconductivity. Yet, it has been proposed that transverse stripe fluctuations may enhance the inter-stripe Josephson coupling and thus promote superconductivity. Direct experimental studies of stripe dynamics, however, remain difficult. From a strong-coupling perspective, transverse stripe fluctuations are realized in the form of dynamic "kinks" -- sideways shifting stripe sections. Here, we show how modest uniaxial pressure tuning reorganizes directional kink alignment. Our starting point is La$_{1.88}$Sr$_{0.12}$CuO$_4$, where transverse kink ordering results in a rotation of stripe order away from the crystal axis. Application of mild uniaxial pressure changes the ordering pattern and pins the stripe order to the crystal axis. This reordering occurs at a much weaker pressure than that to detwin the stripe domains and suggests a rather weak transverse stripe stiffness. Weak spatial stiffness and transverse quantum fluctuations are likely key prerequisites for stripes to coexist with superconductivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.09987v1-abstract-full').style.display = 'none'; document.getElementById('2203.09987v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted in Nature Communications</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Communications 13, 1795 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.10778">arXiv:2202.10778</a> <span> [<a href="https://arxiv.org/pdf/2202.10778">pdf</a>, <a href="https://arxiv.org/format/2202.10778">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1002/aelm.202101006">10.1002/aelm.202101006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Toward Functionalized Ultrathin Oxide Films: the Impact of Surface Apical Oxygen </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Gabel%2C+J">Judith Gabel</a>, <a href="/search/cond-mat?searchtype=author&query=Pickem%2C+M">Matthias Pickem</a>, <a href="/search/cond-mat?searchtype=author&query=Scheiderer%2C+P">Philipp Scheiderer</a>, <a href="/search/cond-mat?searchtype=author&query=Dudy%2C+L">Lenart Dudy</a>, <a href="/search/cond-mat?searchtype=author&query=Leikert%2C+B">Berengar Leikert</a>, <a href="/search/cond-mat?searchtype=author&query=Fuchs%2C+M">Marius Fuchs</a>, <a href="/search/cond-mat?searchtype=author&query=St%C3%BCbinger%2C+M">Martin St眉binger</a>, <a href="/search/cond-mat?searchtype=author&query=Schmitt%2C+M">Matthias Schmitt</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">Julia K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Sangiovanni%2C+G">Giorgio Sangiovanni</a>, <a href="/search/cond-mat?searchtype=author&query=Tomczak%2C+J+M">Jan M. Tomczak</a>, <a href="/search/cond-mat?searchtype=author&query=Held%2C+K">Karsten Held</a>, <a href="/search/cond-mat?searchtype=author&query=Lee%2C+T">Tien-Lin Lee</a>, <a href="/search/cond-mat?searchtype=author&query=Claessen%2C+R">Ralph Claessen</a>, <a href="/search/cond-mat?searchtype=author&query=Sing%2C+M">Michael Sing</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.10778v1-abstract-short" style="display: inline;"> Thin films of transition metal oxides open up a gateway to nanoscale electronic devices beyond silicon characterized by novel electronic functionalities. While such films are commonly prepared in an oxygen atmosphere, they are typically considered to be ideally terminated with the stoichiometric composition. Using the prototypical correlated metal SrVO$_3$ as an example, it is demonstrated that th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.10778v1-abstract-full').style.display = 'inline'; document.getElementById('2202.10778v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.10778v1-abstract-full" style="display: none;"> Thin films of transition metal oxides open up a gateway to nanoscale electronic devices beyond silicon characterized by novel electronic functionalities. While such films are commonly prepared in an oxygen atmosphere, they are typically considered to be ideally terminated with the stoichiometric composition. Using the prototypical correlated metal SrVO$_3$ as an example, it is demonstrated that this idealized description overlooks an essential ingredient: oxygen adsorbing at the surface apical sites. The oxygen adatoms, which persist even in an ultrahigh vacuum environment, are shown to severely affect the intrinsic electronic structure of a transition metal oxide film. Their presence leads to the formation of an electronically dead surface layer but also alters the band filling and the electron correlations in the thin films. These findings highlight that it is important to take into account surface apical oxygen or -- mutatis mutandis -- the specific oxygen configuration imposed by a capping layer to predict the behavior of ultrathin films of transition metal oxides near the single unit-cell limit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.10778v1-abstract-full').style.display = 'none'; document.getElementById('2202.10778v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Adv. Electron. Mater. 2021, 2101006 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.04858">arXiv:2201.04858</a> <span> [<a href="https://arxiv.org/pdf/2201.04858">pdf</a>, <a href="https://arxiv.org/format/2201.04858">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevB.105.224113">10.1103/PhysRevB.105.224113 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Crystal Symmetry of Stripe Ordered La1.88Sr0.12CuO4 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Frison%2C+R">Ruggero Frison</a>, <a href="/search/cond-mat?searchtype=author&query=Kuespert%2C+J">Julia Kuespert</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">Oleh Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=von+Zimmermann%2C+M">Martin von Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Meven%2C+M">Martin Meven</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">Damian Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Larsen%2C+J">Jakob Larsen</a>, <a href="/search/cond-mat?searchtype=author&query=Niedermayer%2C+C">Christof Niedermayer</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">Marc Janoschek</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">Tohru Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">Naoki Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">Migaku Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">Niels Bech Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">Johan Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.04858v3-abstract-short" style="display: inline;"> We present a combined x-ray and neutron diffraction study of the stripe ordered superconductor \lscox{0.12}. The average crystal structure is consistent with the orthorhombic $Bmab$ space group as commonly reported in the literature. This structure however is not symmetry compatible with a second order phase transition into the stripe order phase, and, as we report here numerous Bragg peaks forbid… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04858v3-abstract-full').style.display = 'inline'; document.getElementById('2201.04858v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.04858v3-abstract-full" style="display: none;"> We present a combined x-ray and neutron diffraction study of the stripe ordered superconductor \lscox{0.12}. The average crystal structure is consistent with the orthorhombic $Bmab$ space group as commonly reported in the literature. This structure however is not symmetry compatible with a second order phase transition into the stripe order phase, and, as we report here numerous Bragg peaks forbidden in the $Bmab$ space group are observed. We have studied and analysed these $Bmab$-forbidden Bragg reflections. Fitting of the diffraction intensities yields monoclinic lattice distortions that are symmetry consistent with charge stripe order. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04858v3-abstract-full').style.display = 'none'; document.getElementById('2201.04858v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures, 5 Tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.12472">arXiv:2105.12472</a> <span> [<a href="https://arxiv.org/pdf/2105.12472">pdf</a>, <a href="https://arxiv.org/format/2105.12472">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevB.103.235128">10.1103/PhysRevB.103.235128 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hard X-ray photoemission spectroscopy of LaVO$_3$/SrTiO$_3$: Band alignment and electronic reconstruction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=St%C3%BCbinger%2C+M">M. St眉binger</a>, <a href="/search/cond-mat?searchtype=author&query=Gabel%2C+J">J. Gabel</a>, <a href="/search/cond-mat?searchtype=author&query=Scheiderer%2C+P">P. Scheiderer</a>, <a href="/search/cond-mat?searchtype=author&query=Zapf%2C+M">M. Zapf</a>, <a href="/search/cond-mat?searchtype=author&query=Schmitt%2C+M">M. Schmitt</a>, <a href="/search/cond-mat?searchtype=author&query=Sch%C3%BCtz%2C+P">P. Sch眉tz</a>, <a href="/search/cond-mat?searchtype=author&query=Leikert%2C+B">B. Leikert</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Kamp%2C+M">M. Kamp</a>, <a href="/search/cond-mat?searchtype=author&query=Thakur%2C+P+K">P. K. Thakur</a>, <a href="/search/cond-mat?searchtype=author&query=Lee%2C+T+-">T. -L. Lee</a>, <a href="/search/cond-mat?searchtype=author&query=Potapov%2C+P">P. Potapov</a>, <a href="/search/cond-mat?searchtype=author&query=Lubk%2C+A">A. Lubk</a>, <a href="/search/cond-mat?searchtype=author&query=B%C3%BCchner%2C+B">B. B眉chner</a>, <a href="/search/cond-mat?searchtype=author&query=Sing%2C+M">M. Sing</a>, <a href="/search/cond-mat?searchtype=author&query=Claessen%2C+R">R. Claessen</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.12472v1-abstract-short" style="display: inline;"> The heterostructure consisting of the Mott insulator LaVO$_3$ and the band insulator SrTiO$_3$ is considered a promising candidate for future photovoltaic applications. Not only does the (direct) excitation gap of LaVO$_3$ match well the solar spectrum, but its correlated nature and predicted built-in potential, owing to the non-polar/polar interface when integrated with SrTiO$_3$, also offer rema… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12472v1-abstract-full').style.display = 'inline'; document.getElementById('2105.12472v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.12472v1-abstract-full" style="display: none;"> The heterostructure consisting of the Mott insulator LaVO$_3$ and the band insulator SrTiO$_3$ is considered a promising candidate for future photovoltaic applications. Not only does the (direct) excitation gap of LaVO$_3$ match well the solar spectrum, but its correlated nature and predicted built-in potential, owing to the non-polar/polar interface when integrated with SrTiO$_3$, also offer remarkable advantages over conventional solar cells. However, experimental data beyond the observation of a thickness-dependent metal-insulator transition is scarce and a profound, microscopic understanding of the electronic properties is still lacking. By means of soft and hard X-ray photoemission spectroscopy as well as resistivity and Hall effect measurements we study the electrical properties, band bending, and band alignment of LaVO$_3$/SrTiO$_3$ heterostructures. We find a critical LaVO$_3$ thickness of five unit cells, confinement of the conducting electrons to exclusively Ti 3$d$ states at the interface, and a potential gradient in the film. From these findings we conclude on electronic reconstruction as the driving mechanism for the formation of the metallic interface in LaVO$_3$/SrTiO$_3$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12472v1-abstract-full').style.display = 'none'; document.getElementById('2105.12472v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 12 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.10503">arXiv:2012.10503</a> <span> [<a href="https://arxiv.org/pdf/2012.10503">pdf</a>, <a href="https://arxiv.org/format/2012.10503">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1126/sciadv.abg7394">10.1126/sciadv.abg7394 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Charge Order Lock-in by Electron-Phonon Coupling in La$_{1.675}$Eu$_{0.2}$Sr$_{0.125}$CuO$_4$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Qisi Wang</a>, <a href="/search/cond-mat?searchtype=author&query=von+Arx%2C+K">K. von Arx</a>, <a href="/search/cond-mat?searchtype=author&query=Horio%2C+M">M. Horio</a>, <a href="/search/cond-mat?searchtype=author&query=Mukkattukavil%2C+D+J">D. John Mukkattukavil</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Sassa%2C+Y">Y. Sassa</a>, <a href="/search/cond-mat?searchtype=author&query=Schmitt%2C+T">T. Schmitt</a>, <a href="/search/cond-mat?searchtype=author&query=Nag%2C+A">A. Nag</a>, <a href="/search/cond-mat?searchtype=author&query=Pyon%2C+S">S. Pyon</a>, <a href="/search/cond-mat?searchtype=author&query=Takayama%2C+T">T. Takayama</a>, <a href="/search/cond-mat?searchtype=author&query=Takagi%2C+H">H. Takagi</a>, <a href="/search/cond-mat?searchtype=author&query=Garcia-Fernandez%2C+M">M. Garcia-Fernandez</a>, <a href="/search/cond-mat?searchtype=author&query=Zhou%2C+K">Ke-Jin Zhou</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2012.10503v1-abstract-short" style="display: inline;"> We report an ultrahigh resolution resonant inelastic x-ray scattering (RIXS) study of the in-plane bond-stretching phonon mode in stripe-ordered cuprate La$_{1.675}$Eu$_{0.2}$Sr$_{0.125}$CuO$_4$. Phonon softening and lifetime shortening are found around the charge ordering wave vector. In addition to these self-energy effects, the electron-phonon coupling is probed by its proportionality to the RI… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.10503v1-abstract-full').style.display = 'inline'; document.getElementById('2012.10503v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.10503v1-abstract-full" style="display: none;"> We report an ultrahigh resolution resonant inelastic x-ray scattering (RIXS) study of the in-plane bond-stretching phonon mode in stripe-ordered cuprate La$_{1.675}$Eu$_{0.2}$Sr$_{0.125}$CuO$_4$. Phonon softening and lifetime shortening are found around the charge ordering wave vector. In addition to these self-energy effects, the electron-phonon coupling is probed by its proportionality to the RIXS cross section. We find an enhancement of the electron-phonon coupling around the charge-stripe ordering wave vector upon cooling into the low-temperature tetragonal structure phase. These results suggest that in addition to electronic correlations, electron-phonon coupling contributes significantly to the emergence of long-range charge-stripe order in cuprates. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.10503v1-abstract-full').style.display = 'none'; document.getElementById('2012.10503v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Supplemental Material available on request</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Science Advances 7, eabg7394 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.06967">arXiv:2009.06967</a> <span> [<a href="https://arxiv.org/pdf/2009.06967">pdf</a>, <a href="https://arxiv.org/format/2009.06967">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> </div> </div> <p class="title is-5 mathjax"> Disentangling Intertwined Quantum States in a Prototypical Cuprate Superconductor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Choi%2C+J">J. Choi</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/cond-mat?searchtype=author&query=J%C3%B6hr%2C+S">S. J枚hr</a>, <a href="/search/cond-mat?searchtype=author&query=Christensen%2C+N+B">N. B. Christensen</a>, <a href="/search/cond-mat?searchtype=author&query=K%C3%BCspert%2C+J">J. K眉spert</a>, <a href="/search/cond-mat?searchtype=author&query=Bucher%2C+D">D. Bucher</a>, <a href="/search/cond-mat?searchtype=author&query=Biscette%2C+D">D. Biscette</a>, <a href="/search/cond-mat?searchtype=author&query=H%C3%BCcker%2C+M">M. H眉cker</a>, <a href="/search/cond-mat?searchtype=author&query=Kurosawa%2C+T">T. Kurosawa</a>, <a href="/search/cond-mat?searchtype=author&query=Momono%2C+N">N. Momono</a>, <a href="/search/cond-mat?searchtype=author&query=Oda%2C+M">M. Oda</a>, <a href="/search/cond-mat?searchtype=author&query=Ivashko%2C+O">O. Ivashko</a>, <a href="/search/cond-mat?searchtype=author&query=Zimmermann%2C+M+v">M. v. Zimmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Janoschek%2C+M">M. Janoschek</a>, <a href="/search/cond-mat?searchtype=author&query=Chang%2C+J">J. Chang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2009.06967v1-abstract-short" style="display: inline;"> Spontaneous symmetry breaking constitutes a paradigmatic classification scheme of matter. However, broken symmetry also entails domain degeneracy that often impedes identification of novel low symmetry states. In quantum matter, this is additionally complicated by competing intertwined symmetry breaking orders. A prime example is that of unconventional superconductivity and density-wave orders in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.06967v1-abstract-full').style.display = 'inline'; document.getElementById('2009.06967v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.06967v1-abstract-full" style="display: none;"> Spontaneous symmetry breaking constitutes a paradigmatic classification scheme of matter. However, broken symmetry also entails domain degeneracy that often impedes identification of novel low symmetry states. In quantum matter, this is additionally complicated by competing intertwined symmetry breaking orders. A prime example is that of unconventional superconductivity and density-wave orders in doped cuprates in which their respective symmetry relation remains a key question. Using uniaxial pressure as a domain-selective stimulus in combination with x-ray diffraction, we unambiguously reveal that the fundamental symmetry of the charge order in the prototypical cuprate La$_{1.88}$Sr$_{0.12}$CuO$_4$ is characterized by uniaxial stripes. We further demonstrate the direct competition of this stripe order with unconventional superconductivity via magnetic field tuning. The stripy nature of the charge-density-wave state established by our study is a prerequisite for the existence of a superconducting pair-density-wave -- a theoretical proposal that clarifies the interrelation of intertwined quantum phases in unconventional superconductors -- and paves the way for its high-temperature realization. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.06967v1-abstract-full').style.display = 'none'; document.getElementById('2009.06967v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures, 9 supplementary figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 128, 207002 (2022) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 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