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<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/2408.10050">arXiv:2408.10050</a> <span> [<a href="https://arxiv.org/pdf/2408.10050">pdf</a>, <a href="https://arxiv.org/format/2408.10050">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> </div> </div> <p class="title is-5 mathjax"> Imaging ultrafast electronic domain fluctuations with X-ray speckle visibility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Hua%2C+N">N. Hua</a>, <a href="/search/cond-mat?searchtype=author&query=Sun%2C+Y">Y. Sun</a>, <a href="/search/cond-mat?searchtype=author&query=Rao%2C+P">P. Rao</a>, <a href="/search/cond-mat?searchtype=author&query=Hagstr%C3%B6m%2C+N+Z">N. Zhou Hagstr枚m</a>, <a href="/search/cond-mat?searchtype=author&query=Stoychev%2C+B+K">B. K. Stoychev</a>, <a href="/search/cond-mat?searchtype=author&query=Lamb%2C+E+S">E. S. Lamb</a>, <a href="/search/cond-mat?searchtype=author&query=Madhavi%2C+M">M. Madhavi</a>, <a href="/search/cond-mat?searchtype=author&query=Botu%2C+S+T">S. T. Botu</a>, <a href="/search/cond-mat?searchtype=author&query=Jeppson%2C+S">S. Jeppson</a>, <a href="/search/cond-mat?searchtype=author&query=Cl%C3%A9mence%2C+M">M. Cl茅mence</a>, <a href="/search/cond-mat?searchtype=author&query=McConnell%2C+A+G">A. G. McConnell</a>, <a href="/search/cond-mat?searchtype=author&query=Huang%2C+S+-">S. -W. Huang</a>, <a href="/search/cond-mat?searchtype=author&query=Zerdane%2C+S">S. Zerdane</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">R. Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">H. T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Sander%2C+M">M. Sander</a>, <a href="/search/cond-mat?searchtype=author&query=Esposito%2C+V">V. Esposito</a>, <a href="/search/cond-mat?searchtype=author&query=Kramer%2C+P">P. Kramer</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">D. Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Sato%2C+T">T. Sato</a>, <a href="/search/cond-mat?searchtype=author&query=Song%2C+S">S. Song</a>, <a href="/search/cond-mat?searchtype=author&query=Fullerton%2C+E+E">E. E. Fullerton</a>, <a href="/search/cond-mat?searchtype=author&query=Shpyrko%2C+O+G">O. G. Shpyrko</a>, <a href="/search/cond-mat?searchtype=author&query=Kukreja%2C+R">R. Kukreja</a>, <a href="/search/cond-mat?searchtype=author&query=Gerber%2C+S">S. Gerber</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="2408.10050v1-abstract-short" style="display: inline;"> Speckle patterns manifesting from the interaction of coherent X-rays with matter offer a glimpse into the dynamics of nanoscale domains that underpin many emergent phenomena in quantum materials. While the dynamics of the average structure can be followed with time-resolved X-ray diffraction, the ultrafast evolution of local structures in nonequilibrium conditions have thus far eluded detection du… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.10050v1-abstract-full').style.display = 'inline'; document.getElementById('2408.10050v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.10050v1-abstract-full" style="display: none;"> Speckle patterns manifesting from the interaction of coherent X-rays with matter offer a glimpse into the dynamics of nanoscale domains that underpin many emergent phenomena in quantum materials. While the dynamics of the average structure can be followed with time-resolved X-ray diffraction, the ultrafast evolution of local structures in nonequilibrium conditions have thus far eluded detection due to experimental limitations, such as insufficient X-ray coherent flux. Here we demonstrate a nonequilibrium speckle visibility experiment using a split-and-delay setup at an X-ray free-electron laser. Photoinduced electronic domain fluctuations of the magnetic model material Fe$_{3}$O$_{4}$ reveal changes of the trimeron network configuration due to charge dynamics that exhibit liquid-like fluctuations, analogous to a supercooled liquid phase. This suggests that ultrafast dynamics of electronic heterogeneities under optical stimuli are fundamentally different from thermally-driven ones. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.10050v1-abstract-full').style.display = 'none'; document.getElementById('2408.10050v1-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> 19 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.03013">arXiv:2407.03013</a> <span> [<a href="https://arxiv.org/pdf/2407.03013">pdf</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> </div> </div> <p class="title is-5 mathjax"> Disentangling heterogeneity and disorder during ultrafast surface melting of orbital order </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Monti%2C+M">Maurizio Monti</a>, <a href="/search/cond-mat?searchtype=author&query=Siddiqui%2C+K+M">Khalid M. Siddiqui</a>, <a href="/search/cond-mat?searchtype=author&query=Perez-Salinas%2C+D">Daniel Perez-Salinas</a>, <a href="/search/cond-mat?searchtype=author&query=Agarwal%2C+N">Naman Agarwal</a>, <a href="/search/cond-mat?searchtype=author&query=Bremholm%2C+M">Martin Bremholm</a>, <a href="/search/cond-mat?searchtype=author&query=Li%2C+X">Xiang Li</a>, <a href="/search/cond-mat?searchtype=author&query=Prabhakaran%2C+D">Dharmalingam Prabhakaran</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+X">Xin Liu</a>, <a href="/search/cond-mat?searchtype=author&query=Babich%2C+D">Danylo Babich</a>, <a href="/search/cond-mat?searchtype=author&query=Sander%2C+M">Mathias Sander</a>, <a href="/search/cond-mat?searchtype=author&query=Deng%2C+Y">Yunpei Deng</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">Henrik T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">Roman Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+X">Xuerong Liu</a>, <a href="/search/cond-mat?searchtype=author&query=Wall%2C+S+E">Simon E. Wall</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="2407.03013v1-abstract-short" style="display: inline;"> Understanding how light modifies long-range order is key to improve our ability to control material functionality on an ultrafast timescale. Transient spatial heterogeneity has been proposed in many materials, but isolating the dynamics of different regions experimentally has been challenging. Here we address this issue and measure the dynamics of orbital order melting in the layered manganite, La… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.03013v1-abstract-full').style.display = 'inline'; document.getElementById('2407.03013v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.03013v1-abstract-full" style="display: none;"> Understanding how light modifies long-range order is key to improve our ability to control material functionality on an ultrafast timescale. Transient spatial heterogeneity has been proposed in many materials, but isolating the dynamics of different regions experimentally has been challenging. Here we address this issue and measure the dynamics of orbital order melting in the layered manganite, La0.5Sr1.5MnO4, and isolate the surface dynamics from the bulk for the first time. Bulk measurements show orbital order is rapidly suppressed, but the correlation length surprisingly increases. However, the surface dynamics, show a stronger suppression and a significant decrease in correlation length. By isolating the surface changes, we find that light preferentially melts a less ordered surface and the loss of long-range order is likely driven by the formation of local and disordered polarons. Melting the disordered surface effectively increases the average correlation of the bulk probed volume, resolving the contradictory response. These results show that surface scattering methods are necessary to understand both surface and bulk dynamics in heterogeneous materials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.03013v1-abstract-full').style.display = 'none'; document.getElementById('2407.03013v1-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> 3 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">22 pages, 8 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/2312.10133">arXiv:2312.10133</a> <span> [<a href="https://arxiv.org/pdf/2312.10133">pdf</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> </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/10.1063/4.0000236">10.1063/4.0000236 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A set-up for Hard X-ray Time-resolved Resonant Inelastic X-ray Scattering at SwissFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Chen%2C+H">Hui-Yuan Chen</a>, <a href="/search/cond-mat?searchtype=author&query=Versteeg%2C+R+B">Rolf B. Versteeg</a>, <a href="/search/cond-mat?searchtype=author&query=Puppin%2C+M">Michele Puppin</a>, <a href="/search/cond-mat?searchtype=author&query=Leroy%2C+L">Ludmila Leroy</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">Roman Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Bohler%2C+P">Pirmin Bohler</a>, <a href="/search/cond-mat?searchtype=author&query=Deng%2C+Y">Yunpei Deng</a>, <a href="/search/cond-mat?searchtype=author&query=Kerkhoff%2C+L">Linda Kerkhoff</a>, <a href="/search/cond-mat?searchtype=author&query=Mozzanica%2C+A">Aldo Mozzanica</a>, <a href="/search/cond-mat?searchtype=author&query=Oggenfuss%2C+R+A">Roland Alexander Oggenfuss</a>, <a href="/search/cond-mat?searchtype=author&query=Pradervand%2C+C">Claude Pradervand</a>, <a href="/search/cond-mat?searchtype=author&query=Sander%2C+M">Mathias Sander</a>, <a href="/search/cond-mat?searchtype=author&query=Smolentsev%2C+G">Grigory Smolentsev</a>, <a href="/search/cond-mat?searchtype=author&query=Vetter%2C+S">Seraphin Vetter</a>, <a href="/search/cond-mat?searchtype=author&query=Zamofing%2C+T">Thierry Zamofing</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">Henrik T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Chergui%2C+M">Majed Chergui</a>, <a href="/search/cond-mat?searchtype=author&query=Mancini%2C+G+F">Giulia F. Mancini</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="2312.10133v1-abstract-short" style="display: inline;"> We present a new set up for resonant inelastic hard X-ray scattering at the Bernina beamline of SwissFEL with energy, momentum, and temporal resolution. The compact R=0.5 m Johann-type spectrometer can be equipped with up to 3 crystal analysers and allows efficient collection of RIXS spectra. Optical pumping for time-resolved studies can be realized with a broad span of optical wavelengths. We dem… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.10133v1-abstract-full').style.display = 'inline'; document.getElementById('2312.10133v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.10133v1-abstract-full" style="display: none;"> We present a new set up for resonant inelastic hard X-ray scattering at the Bernina beamline of SwissFEL with energy, momentum, and temporal resolution. The compact R=0.5 m Johann-type spectrometer can be equipped with up to 3 crystal analysers and allows efficient collection of RIXS spectra. Optical pumping for time-resolved studies can be realized with a broad span of optical wavelengths. We demonstrate the performance of the set-up at overall ~180 meV resolution in a study of ground-state and photoexcited (at 400 nm) honeycomb 5d iridate $伪$-$\mathrm{Li_2IrO_3}$. Steady-state RIXS spectra at the Iridium ${L_3}$-edge (11.214 keV) have been collected and are in very good agreement with data collected at synchrotrons. The time-resolved RIXS transients (pumped minus unpumped spectra) exhibit changes in the energy-loss region <2 eV, whose features mostly result from the hopping nature of 5d electrons in the honeycomb lattice. These changes are ascribed to modulations of the Ir-to-Ir intersite transition scattering efficiency, which we associate to a transient screening of the on-site Coulomb interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.10133v1-abstract-full').style.display = 'none'; document.getElementById('2312.10133v1-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 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">Comments:</span> <span class="has-text-grey-dark mathjax">17 + 7 pages, 4 + 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Struct. Dyn. 11, 024308 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.12751">arXiv:2309.12751</a> <span> [<a href="https://arxiv.org/pdf/2309.12751">pdf</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="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> Coherent control of orbital wavefunctions in the quantum spin liquid $Tb_{2}Ti_{2}O_{7}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">R. Mankowsky</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=Sander%2C+M">M. Sander</a>, <a href="/search/cond-mat?searchtype=author&query=Zerdane%2C+S">S. Zerdane</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+X">X. Liu</a>, <a href="/search/cond-mat?searchtype=author&query=Babich%2C+D">D. Babich</a>, <a href="/search/cond-mat?searchtype=author&query=Ueda%2C+H">H. Ueda</a>, <a href="/search/cond-mat?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/cond-mat?searchtype=author&query=Winkler%2C+R">R. Winkler</a>, <a href="/search/cond-mat?searchtype=author&query=Strudwick%2C+B">B. Strudwick</a>, <a href="/search/cond-mat?searchtype=author&query=Savoini%2C+M">M. Savoini</a>, <a href="/search/cond-mat?searchtype=author&query=Giorgianni%2C+F">F. Giorgianni</a>, <a href="/search/cond-mat?searchtype=author&query=Johnson%2C+S+L">S. L. Johnson</a>, <a href="/search/cond-mat?searchtype=author&query=Pomjakushina%2C+E">E. Pomjakushina</a>, <a href="/search/cond-mat?searchtype=author&query=Beaud1%2C+P">P. Beaud1</a>, <a href="/search/cond-mat?searchtype=author&query=Fennel%2C+T">T. Fennel</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">H. T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Staub%2C+U">U. Staub</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="2309.12751v1-abstract-short" style="display: inline;"> Resonant driving of electronic transitions with coherent laser sources creates quantum coherent superpositions of the involved electronic states. Most time-resolved studies have focused on gases or isolated subsystems embedded in insulating solids, aiming for applications in quantum information. Here, we demonstrate coherent control of orbital wavefunctions in pyrochlore $Tb_{2}Ti_{2}O_{7}$, which… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.12751v1-abstract-full').style.display = 'inline'; document.getElementById('2309.12751v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.12751v1-abstract-full" style="display: none;"> Resonant driving of electronic transitions with coherent laser sources creates quantum coherent superpositions of the involved electronic states. Most time-resolved studies have focused on gases or isolated subsystems embedded in insulating solids, aiming for applications in quantum information. Here, we demonstrate coherent control of orbital wavefunctions in pyrochlore $Tb_{2}Ti_{2}O_{7}$, which forms an interacting spin liquid ground state. We show that resonant excitation with a strong THz pulse creates a coherent superposition of the lowest energy Tb 4f states before the magnetic interactions eventually dephase them. The coherence manifests itself as a macroscopic oscillating magnetic dipole, which is detected by ultrafast resonant x-ray diffraction. The induced quantum coherence demonstrates coherent control of orbital wave functions, a new tool for the ultrafast manipulation and investigation of quantum materials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.12751v1-abstract-full').style.display = 'none'; document.getElementById('2309.12751v1-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 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.02676">arXiv:2306.02676</a> <span> [<a href="https://arxiv.org/pdf/2306.02676">pdf</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> </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/s41467-023-43581-9">10.1038/s41467-023-43581-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Non-equilibrium dynamics of spin-lattice coupling </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Ueda%2C+H">Hiroki Ueda</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">Roman Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Paris%2C+E">Eugenio Paris</a>, <a href="/search/cond-mat?searchtype=author&query=Sander%2C+M">Mathias Sander</a>, <a href="/search/cond-mat?searchtype=author&query=Deng%2C+Y">Yunpei Deng</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+B">Biaolong Liu</a>, <a href="/search/cond-mat?searchtype=author&query=Leroy%2C+L">Ludmila Leroy</a>, <a href="/search/cond-mat?searchtype=author&query=Nag%2C+A">Abhishek Nag</a>, <a href="/search/cond-mat?searchtype=author&query=Skoropata%2C+E">Elizabeth Skoropata</a>, <a href="/search/cond-mat?searchtype=author&query=Ukleev%2C+C+W+V">Chennan Wang Victor Ukleev</a>, <a href="/search/cond-mat?searchtype=author&query=Perren%2C+G+S">G茅rard Sylvester Perren</a>, <a href="/search/cond-mat?searchtype=author&query=D%C3%B6ssegger%2C+J">Janine D枚ssegger</a>, <a href="/search/cond-mat?searchtype=author&query=Gurung%2C+S">Sabina Gurung</a>, <a href="/search/cond-mat?searchtype=author&query=Abreu%2C+E">Elsa Abreu</a>, <a href="/search/cond-mat?searchtype=author&query=Savoini%2C+M">Matteo Savoini</a>, <a href="/search/cond-mat?searchtype=author&query=Kimura%2C+T">Tsuyoshi Kimura</a>, <a href="/search/cond-mat?searchtype=author&query=Patthey%2C+L">Luc Patthey</a>, <a href="/search/cond-mat?searchtype=author&query=Razzoli%2C+E">Elia Razzoli</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">Henrik Till Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Johnson%2C+S+L">Steven Lee Johnson</a>, <a href="/search/cond-mat?searchtype=author&query=Staub%2C+U">Urs Staub</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="2306.02676v1-abstract-short" style="display: inline;"> Interactions between the different degrees of freedom form the basis of many manifestations of intriguing physics in condensed matter. In this respect, quantifying the dynamics of normal modes that themselves arise from these interactions and how they interact with other excitations is of central importance. Of the different types of coupling that are often important, spin-lattice coupling is rele… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.02676v1-abstract-full').style.display = 'inline'; document.getElementById('2306.02676v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.02676v1-abstract-full" style="display: none;"> Interactions between the different degrees of freedom form the basis of many manifestations of intriguing physics in condensed matter. In this respect, quantifying the dynamics of normal modes that themselves arise from these interactions and how they interact with other excitations is of central importance. Of the different types of coupling that are often important, spin-lattice coupling is relevant to several sub-fields of condensed matter physics; examples include spintronics, high-TC superconductivity, and topological materials. While theories of materials where spin-lattice coupling is relevant can sometimes be used to infer the magnitude and character of this interaction, experimental approaches that can directly measure it are rare and incomplete. Here we use time-resolved X-ray diffraction to directly access the spin-lattice coupling by measuring both ultrafast atomic motion and the associated spin dynamics following the excitation of a coherent electromagnon by an intense THz pulse in a multiferroic hexaferrite. Comparing the dynamics of the two different components, one striking outcome is the different phase shifts relative to the driving field. This phase shift provides insight into the excitation process of such a coupled mode. This direct observation of combined lattice and magnetization dynamics paves the way to access the mode-selective spin-lattice coupling strength, which remains a missing fundamental parameter for ultrafast control of magnetism and is relevant to a wide variety of correlated electron physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.02676v1-abstract-full').style.display = 'none'; document.getElementById('2306.02676v1-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 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">4 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/2208.04200">arXiv:2208.04200</a> <span> [<a href="https://arxiv.org/pdf/2208.04200">pdf</a>, <a href="https://arxiv.org/ps/2208.04200">ps</a>, <a href="https://arxiv.org/format/2208.04200">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/10.1063/5.0119241">10.1063/5.0119241 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Effect of intense x-ray free-electron laser transient gratings on the magnetic domain structure of Tm:YIG </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Ukleev%2C+V">Victor Ukleev</a>, <a href="/search/cond-mat?searchtype=author&query=Burian%2C+M">Max Burian</a>, <a href="/search/cond-mat?searchtype=author&query=Gliga%2C+S">Sebastian Gliga</a>, <a href="/search/cond-mat?searchtype=author&query=Vaz%2C+C+A+F">C. A. F. Vaz</a>, <a href="/search/cond-mat?searchtype=author&query=R%C3%B6sner%2C+B">Benedikt R枚sner</a>, <a href="/search/cond-mat?searchtype=author&query=Fainozzi%2C+D">Danny Fainozzi</a>, <a href="/search/cond-mat?searchtype=author&query=Seniutinas%2C+G">Gediminas Seniutinas</a>, <a href="/search/cond-mat?searchtype=author&query=Kubec%2C+A">Adam Kubec</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">Roman Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">Henrik T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Rosenberg%2C+E+R">Ethan R. Rosenberg</a>, <a href="/search/cond-mat?searchtype=author&query=Ross%2C+C+A">Caroline A. Ross</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%BCller%2C+E">Elisabeth M眉ller</a>, <a href="/search/cond-mat?searchtype=author&query=David%2C+C">Christian David</a>, <a href="/search/cond-mat?searchtype=author&query=Svetina%2C+C">Cristian Svetina</a>, <a href="/search/cond-mat?searchtype=author&query=Staub%2C+U">Urs Staub</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="2208.04200v2-abstract-short" style="display: inline;"> Magnetic patterns can be controlled globally using fields or spin polarized currents. In contrast, the local control of the magnetization on the nanometer length scale remains challenging. Here, we demonstrate how magnetic domain patterns in a Tm-doped yttrium iron garnet (Tm:YIG) thin film with perpendicular magnetic anisotropy can be permanently and locally imprinted by high intensity photon pul… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04200v2-abstract-full').style.display = 'inline'; document.getElementById('2208.04200v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.04200v2-abstract-full" style="display: none;"> Magnetic patterns can be controlled globally using fields or spin polarized currents. In contrast, the local control of the magnetization on the nanometer length scale remains challenging. Here, we demonstrate how magnetic domain patterns in a Tm-doped yttrium iron garnet (Tm:YIG) thin film with perpendicular magnetic anisotropy can be permanently and locally imprinted by high intensity photon pulses of a hard x-ray transient grating (XTG). Micromagnetic simulations provide a qualitative understanding of the observed changes in the orientation of magnetic domains in Tm:YIG and XTG-induced changes. The presented results offer a route for the local manipulation of the magnetic state using hard XTG. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04200v2-abstract-full').style.display = 'none'; document.getElementById('2208.04200v2-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> 3 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">15 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Appl. Phys. 133, 123902 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.01030">arXiv:2104.01030</a> <span> [<a href="https://arxiv.org/pdf/2104.01030">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</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/s41566-021-00797-9">10.1038/s41566-021-00797-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hard X-ray Transient Grating Spectroscopy on Bismuth Germanate </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Rouxel%2C+J+R">Jeremy R. Rouxel</a>, <a href="/search/cond-mat?searchtype=author&query=Fainozzi%2C+D">Danny Fainozzi</a>, <a href="/search/cond-mat?searchtype=author&query=Mankowsky%2C+R">Roman Mankowsky</a>, <a href="/search/cond-mat?searchtype=author&query=Rosner%2C+B">Benedikt Rosner</a>, <a href="/search/cond-mat?searchtype=author&query=Seniutinas%2C+G">Gediminas Seniutinas</a>, <a href="/search/cond-mat?searchtype=author&query=Mincigrucci%2C+R">Riccardo Mincigrucci</a>, <a href="/search/cond-mat?searchtype=author&query=Catalini%2C+S">Sara Catalini</a>, <a href="/search/cond-mat?searchtype=author&query=Foglia%2C+L">Laura Foglia</a>, <a href="/search/cond-mat?searchtype=author&query=Cucini%2C+R">Riccardo Cucini</a>, <a href="/search/cond-mat?searchtype=author&query=Doring%2C+F">Florian Doring</a>, <a href="/search/cond-mat?searchtype=author&query=Kubec%2C+A">Adam Kubec</a>, <a href="/search/cond-mat?searchtype=author&query=Koch%2C+F">Frieder Koch</a>, <a href="/search/cond-mat?searchtype=author&query=Bencivenga%2C+F">Filippo Bencivenga</a>, <a href="/search/cond-mat?searchtype=author&query=Haddad%2C+A+A">Andre Al Haddad</a>, <a href="/search/cond-mat?searchtype=author&query=Gessini%2C+A">Alessandro Gessini</a>, <a href="/search/cond-mat?searchtype=author&query=Maznev%2C+A+A">Alexei A. Maznev</a>, <a href="/search/cond-mat?searchtype=author&query=Cirelli%2C+C">Claudio Cirelli</a>, <a href="/search/cond-mat?searchtype=author&query=Gerber%2C+S">Simon Gerber</a>, <a href="/search/cond-mat?searchtype=author&query=Pedrini%2C+B">Bill Pedrini</a>, <a href="/search/cond-mat?searchtype=author&query=Mancini%2C+G+F">Giulia F. Mancini</a>, <a href="/search/cond-mat?searchtype=author&query=Razzoli%2C+E">Elia Razzoli</a>, <a href="/search/cond-mat?searchtype=author&query=Burian%2C+M">Max Burian</a>, <a href="/search/cond-mat?searchtype=author&query=Ueda%2C+H">Hiroki Ueda</a>, <a href="/search/cond-mat?searchtype=author&query=Pamfilidis%2C+G">Georgios Pamfilidis</a>, <a href="/search/cond-mat?searchtype=author&query=Ferrari%2C+E">Eugenio Ferrari</a> , et al. (22 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="2104.01030v1-abstract-short" style="display: inline;"> Optical-domain Transient Grating (TG) spectroscopy is a versatile background-free four-wave-mixing technique used to probe vibrational, magnetic and electronic degrees of freedom in the time domain. The newly developed coherent X-ray Free Electron Laser sources allow its extension to the X-ray regime. Xrays offer multiple advantages for TG: their large penetration depth allows probing the bulk pro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.01030v1-abstract-full').style.display = 'inline'; document.getElementById('2104.01030v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.01030v1-abstract-full" style="display: none;"> Optical-domain Transient Grating (TG) spectroscopy is a versatile background-free four-wave-mixing technique used to probe vibrational, magnetic and electronic degrees of freedom in the time domain. The newly developed coherent X-ray Free Electron Laser sources allow its extension to the X-ray regime. Xrays offer multiple advantages for TG: their large penetration depth allows probing the bulk properties of materials, their element-specificity can address core-excited states, and their short wavelengths create excitation gratings with unprecedented momentum transfer and spatial resolution. We demonstrate for the first time TG excitation in the hard X-ray range at 7.1 keV. In Bismuth Germanate (BGO), the nonresonant TG excitation generates coherent optical phonons detected as a function of time by diffraction of an optical probe pulse. This experiment demonstrates the ability to probe bulk properties of materials and paves the way for ultrafast coherent four-wave-mixing techniques using X-ray probes and involving nanoscale TG spatial periods. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.01030v1-abstract-full').style.display = 'none'; document.getElementById('2104.01030v1-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> 2 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">11 pages, 4 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/2005.01572">arXiv:2005.01572</a> <span> [<a href="https://arxiv.org/pdf/2005.01572">pdf</a>, <a href="https://arxiv.org/format/2005.01572">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> </div> </div> <p class="title is-5 mathjax"> Single-shot X-ray Absorption Spectroscopy at X-ray Free Electron Lasers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Harmand%2C+M">M. Harmand</a>, <a href="/search/cond-mat?searchtype=author&query=Cammarata%2C+M">M. Cammarata</a>, <a href="/search/cond-mat?searchtype=author&query=Chollet%2C+M">M. Chollet</a>, <a href="/search/cond-mat?searchtype=author&query=Krygier%2C+A+G">A. G Krygier</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">H. T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">D. Zhu</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="2005.01572v1-abstract-short" style="display: inline;"> X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method. While synchrotrons have large communities of XAS users, its use on X-Ray Free Electron Lasers (XFEL) facilities has been rather limited. At a first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of XFEL sources seem to prevent high-quality XAS measurements without accumulating over… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.01572v1-abstract-full').style.display = 'inline'; document.getElementById('2005.01572v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.01572v1-abstract-full" style="display: none;"> X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method. While synchrotrons have large communities of XAS users, its use on X-Ray Free Electron Lasers (XFEL) facilities has been rather limited. At a first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of XFEL sources seem to prevent high-quality XAS measurements without accumulating over many shots. Here, we demonstrate for the first time the collection of single-shot XAS spectra on an XFEL, with error bars of only a few percent, over tens of eV. We show how this technique can be extended over wider spectral ranges towards Extended X-ray Absorption Fine Structure (EXAFS) measurements, by concatenating a few tens of single-shot measurements. Such results open indisputable perspectives for future femtosecond time resolved XAS studies, especially for transient processes that can be initiated at low repetition rate. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.01572v1-abstract-full').style.display = 'none'; document.getElementById('2005.01572v1-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 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">11 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/1808.00697">arXiv:1808.00697</a> <span> [<a href="https://arxiv.org/pdf/1808.00697">pdf</a>, <a href="https://arxiv.org/format/1808.00697">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> </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.99.134302">10.1103/PhysRevB.99.134302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Rettig%2C+L">L. Rettig</a>, <a href="/search/cond-mat?searchtype=author&query=Caviezel%2C+A">A. Caviezel</a>, <a href="/search/cond-mat?searchtype=author&query=Mariager%2C+S+O">S. O. Mariager</a>, <a href="/search/cond-mat?searchtype=author&query=Ingold%2C+G">G. Ingold</a>, <a href="/search/cond-mat?searchtype=author&query=Dornes%2C+C">C. Dornes</a>, <a href="/search/cond-mat?searchtype=author&query=Huang%2C+S">S-W. Huang</a>, <a href="/search/cond-mat?searchtype=author&query=Johnson%2C+J+A">J. A. Johnson</a>, <a href="/search/cond-mat?searchtype=author&query=Radovic%2C+M">M. Radovic</a>, <a href="/search/cond-mat?searchtype=author&query=Huber%2C+T">T. Huber</a>, <a href="/search/cond-mat?searchtype=author&query=Kubacka%2C+T">T. Kubacka</a>, <a href="/search/cond-mat?searchtype=author&query=Ferrer%2C+A">A. Ferrer</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">H. T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Chollet%2C+M">M. Chollet</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">D. Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Glownia%2C+J+M">J. M. Glownia</a>, <a href="/search/cond-mat?searchtype=author&query=Sikorski%2C+M">M. Sikorski</a>, <a href="/search/cond-mat?searchtype=author&query=Robert%2C+A">A. Robert</a>, <a href="/search/cond-mat?searchtype=author&query=Nakamura%2C+M">M. Nakamura</a>, <a href="/search/cond-mat?searchtype=author&query=Kawasaki%2C+M">M. Kawasaki</a>, <a href="/search/cond-mat?searchtype=author&query=Tokura%2C+Y">Y. Tokura</a>, <a href="/search/cond-mat?searchtype=author&query=Johnson%2C+S+L">S. L. Johnson</a>, <a href="/search/cond-mat?searchtype=author&query=Beaud%2C+P">P. Beaud</a>, <a href="/search/cond-mat?searchtype=author&query=Staub%2C+U">U. Staub</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="1808.00697v1-abstract-short" style="display: inline;"> We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing femtosecond time-resolved resonant x-ray diffraction below and at the Mn K absorption edge, we present a method to disentangle the transient charge order and structural dynamics in thin films of Pr0.5Ca0.5MnO3. Based on… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.00697v1-abstract-full').style.display = 'inline'; document.getElementById('1808.00697v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.00697v1-abstract-full" style="display: none;"> We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing femtosecond time-resolved resonant x-ray diffraction below and at the Mn K absorption edge, we present a method to disentangle the transient charge order and structural dynamics in thin films of Pr0.5Ca0.5MnO3. Based on the static resonant scattering spectra, we extract the dispersion correction of charge ordered Mn3+ and Mn4+ ions, allowing us to separate the transient contributions of purely charge order from structural contributions to the scattering amplitude after optical excitation. Our finding of a coherent structural mode at around 2.3 THz, which primarily modulates the lattice, but does not strongly affect the charge order, confirms the picture of the charge order being the driving force of the combined charge, orbital and structural transition. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.00697v1-abstract-full').style.display = 'none'; document.getElementById('1808.00697v1-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> 2 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. B 99, 134302 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1504.06655">arXiv:1504.06655</a> <span> [<a href="https://arxiv.org/pdf/1504.06655">pdf</a>, <a href="https://arxiv.org/format/1504.06655">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> </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.92.054303">10.1103/PhysRevB.92.054303 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Phonon Spectroscopy with Sub-meV Resolution by Femtosecond X-ray Diffuse Scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">Diling Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Robert%2C+A">Aymeric Robert</a>, <a href="/search/cond-mat?searchtype=author&query=Henighan%2C+T">Tom Henighan</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H+T">Henrik T. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Chollet%2C+M">Matthieu Chollet</a>, <a href="/search/cond-mat?searchtype=author&query=Glownia%2C+J+M">J. Michael Glownia</a>, <a href="/search/cond-mat?searchtype=author&query=Reis%2C+D+A">David A. Reis</a>, <a href="/search/cond-mat?searchtype=author&query=Trigo%2C+M">Mariano Trigo</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="1504.06655v1-abstract-short" style="display: inline;"> We present a reconstruction of the transverse acoustic phonon dispersion of germanium from femtosecond time-resolved x-ray diffuse scattering measurements at the Linac Coherent Light Source. We demonstrate an energy resolution of 0.3 meV with momentum resolution of 0.01 nm^-1 using 10 keV x-rays with a bandwidth of ~ 1 eV. This high resolution was achieved simultaneously for a large section of rec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.06655v1-abstract-full').style.display = 'inline'; document.getElementById('1504.06655v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.06655v1-abstract-full" style="display: none;"> We present a reconstruction of the transverse acoustic phonon dispersion of germanium from femtosecond time-resolved x-ray diffuse scattering measurements at the Linac Coherent Light Source. We demonstrate an energy resolution of 0.3 meV with momentum resolution of 0.01 nm^-1 using 10 keV x-rays with a bandwidth of ~ 1 eV. This high resolution was achieved simultaneously for a large section of reciprocal space including regions closely following three of the principle symmetry directions. The phonon dispersion was reconstructed with less than three hours of measurement time, during which neither the x-ray energy, the sample orientation, nor the detector position were scanned. These results demonstrate how time-domain measurements can complement conventional frequency domain inelastic scattering techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.06655v1-abstract-full').style.display = 'none'; document.getElementById('1504.06655v1-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 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2015. </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">3 figures, 4 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. B 92, 054303 (2015) </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 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><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 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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