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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/2303.01866">arXiv:2303.01866</a> <span> [<a href="https://arxiv.org/pdf/2303.01866">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> </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/10.1021/acs.nanolett.3c00765">10.1021/acs.nanolett.3c00765 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transition from Diffusive to Superdiffusive Transport in Carbon Nanotube Networks via Nematic Order Control </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Wais%2C+M">Michael Wais</a>, <a href="/search/cond-mat?searchtype=author&query=Bagsican%2C+F+R+G">Filchito Renee G. Bagsican</a>, <a href="/search/cond-mat?searchtype=author&query=Komatsu%2C+N">Natsumi Komatsu</a>, <a href="/search/cond-mat?searchtype=author&query=Gao%2C+W">Weilu Gao</a>, <a href="/search/cond-mat?searchtype=author&query=Serita%2C+K">Kazunori Serita</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">Hironaru Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=Held%2C+K">Karsten Held</a>, <a href="/search/cond-mat?searchtype=author&query=Kawayama%2C+I">Iwao Kawayama</a>, <a href="/search/cond-mat?searchtype=author&query=Kono%2C+J">Junichiro Kono</a>, <a href="/search/cond-mat?searchtype=author&query=Battiato%2C+M">Marco Battiato</a>, <a href="/search/cond-mat?searchtype=author&query=Tonouchi%2C+M">Masayoshi Tonouchi</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="2303.01866v2-abstract-short" style="display: inline;"> The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble of randomly oriented CNTs, this anisotropy disappears together with other properties that make them attractive for certain device applications. The question however remains if not only anisotropy, but other types of beha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01866v2-abstract-full').style.display = 'inline'; document.getElementById('2303.01866v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.01866v2-abstract-full" style="display: none;"> The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble of randomly oriented CNTs, this anisotropy disappears together with other properties that make them attractive for certain device applications. The question however remains if not only anisotropy, but other types of behaviours are suppressed by disorder. Here, we compare the dynamics of quasiparticles under strong electric fields in aligned and random CNT networks using a combination of terahertz emission and photocurrent experiments and out-of-equilibrium numerical simulations. We find that the degree of alignment strongly influences the excited quasiparticles' dynamics, rerouting the thermalisation pathways. This is, in particular, evidenced in the high-energy, high-momentum electronic population (probed through the formation of low energy excitons via exciton impact ionization) and the transport regime evolving from diffusive to superdiffusive. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01866v2-abstract-full').style.display = 'none'; document.getElementById('2303.01866v2-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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 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/2004.02615">arXiv:2004.02615</a> <span> [<a href="https://arxiv.org/pdf/2004.02615">pdf</a>, <a href="https://arxiv.org/format/2004.02615">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/10.1021/acs.nanolett.9b05082">10.1021/acs.nanolett.9b05082 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Terahertz Excitonics in Carbon Nanotubes: Exciton Autoionization and Multiplication </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Bagsican%2C+F+R+G">Filchito Renee G. Bagsican</a>, <a href="/search/cond-mat?searchtype=author&query=Wais%2C+M">Michael Wais</a>, <a href="/search/cond-mat?searchtype=author&query=Komatsu%2C+N">Natsumi Komatsu</a>, <a href="/search/cond-mat?searchtype=author&query=Gao%2C+W">Weilu Gao</a>, <a href="/search/cond-mat?searchtype=author&query=Weber%2C+L+W">Lincoln W. Weber</a>, <a href="/search/cond-mat?searchtype=author&query=Serita%2C+K">Kazunori Serita</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">Hironaru Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=Held%2C+K">Karsten Held</a>, <a href="/search/cond-mat?searchtype=author&query=Hegmann%2C+F+A">Frank A. Hegmann</a>, <a href="/search/cond-mat?searchtype=author&query=Tonouchi%2C+M">Masayoshi Tonouchi</a>, <a href="/search/cond-mat?searchtype=author&query=Kono%2C+J">Junichiro Kono</a>, <a href="/search/cond-mat?searchtype=author&query=Kawayama%2C+I">Iwao Kawayama</a>, <a href="/search/cond-mat?searchtype=author&query=Battiato%2C+M">Marco Battiato</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="2004.02615v1-abstract-short" style="display: inline;"> Excitons play major roles in optical processes in modern semiconductors, such as single-wall carbon nanotubes (SWCNTs), transition metal dichalcogenides, and 2D perovskite quantum wells. They possess extremely large binding energies (>100~meV), dominating absorption and emission spectra even at high temperatures. The large binding energies imply that they are stable, that is, hard to ionize, rende… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02615v1-abstract-full').style.display = 'inline'; document.getElementById('2004.02615v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.02615v1-abstract-full" style="display: none;"> Excitons play major roles in optical processes in modern semiconductors, such as single-wall carbon nanotubes (SWCNTs), transition metal dichalcogenides, and 2D perovskite quantum wells. They possess extremely large binding energies (>100~meV), dominating absorption and emission spectra even at high temperatures. The large binding energies imply that they are stable, that is, hard to ionize, rendering them seemingly unsuited for optoelectronic devices that require mobile charge carriers, especially terahertz emitters and solar cells. Here, we have conducted terahertz emission and photocurrent studies on films of aligned single-chirality semiconducting SWCNTs and find that excitons autoionize, i.e., spontaneously dissociate into electrons and holes. This process naturally occurs ultrafast (<1~ps) while conserving energy and momentum. The created carriers can then be accelerated to emit a burst of terahertz radiation when a dc bias is applied, with promising efficiency in comparison to standard GaAs-based emitters. Furthermore, at high bias, the accelerated carriers acquire high enough kinetic energy to create secondary excitons through impact exciton generation, again in a fully energy and momentum conserving fashion. This exciton multiplication process leads to a nonlinear photocurrent increase as a function of bias. Our theoretical simulations based on nonequilibrium Boltzmann transport equations, taking into account all possible scattering pathways and a realistic band structure, reproduce all our experimental data semi-quantitatively. These results not only elucidate the momentum-dependent ultrafast dynamics of excitons and carriers in SWCNTs but also suggest promising routes toward terahertz excitonics despite the orders-of-magnitude mismatch between the exciton binding energies and the terahertz photon energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02615v1-abstract-full').style.display = 'none'; document.getElementById('2004.02615v1-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> 6 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.02129">arXiv:1901.02129</a> <span> [<a href="https://arxiv.org/pdf/1901.02129">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> </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/10.1063/1.5046977">10.1063/1.5046977 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fabrication of yttrium-iron-garnet/Pt multilayers for the longitudinal spin Seebeck effect </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Nozue%2C+T">Tatsuhiro Nozue</a>, <a href="/search/cond-mat?searchtype=author&query=Kikkawa%2C+T">Takashi Kikkawa</a>, <a href="/search/cond-mat?searchtype=author&query=Watamura%2C+T">Tomoki Watamura</a>, <a href="/search/cond-mat?searchtype=author&query=Niizeki%2C+T">Tomohiko Niizeki</a>, <a href="/search/cond-mat?searchtype=author&query=Ramos%2C+R">Rafael Ramos</a>, <a href="/search/cond-mat?searchtype=author&query=Saitoh%2C+E">Eiji Saitoh</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">Hirohiko Murakami</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="1901.02129v1-abstract-short" style="display: inline;"> For longitudinal spin Seebeck effect (LSSE) devices, a multilayer structure comprising ferromagnetic and nonmagnetic layers is expected to improve their thermoelectric power. In this study, we developed the fabrication method for alternately stacked yttrium-iron-garnet (YIG)/Pt multilayer films on a gadolinium gallium garnet (GGG) (110) substrate, GGG/[YIG(49 nm)/Pt(4 nm)]$_n$ ($n =$ 1 - 5) based… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.02129v1-abstract-full').style.display = 'inline'; document.getElementById('1901.02129v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.02129v1-abstract-full" style="display: none;"> For longitudinal spin Seebeck effect (LSSE) devices, a multilayer structure comprising ferromagnetic and nonmagnetic layers is expected to improve their thermoelectric power. In this study, we developed the fabrication method for alternately stacked yttrium-iron-garnet (YIG)/Pt multilayer films on a gadolinium gallium garnet (GGG) (110) substrate, GGG/[YIG(49 nm)/Pt(4 nm)]$_n$ ($n =$ 1 - 5) based on room-temperature sputtering and $ex$-$situ$ post-annealing method and we evaluated their structural and LSSE properties. The fabricated [YIG/Pt]$_n$ samples show flat YIG/Pt interfaces and almost identical saturation magnetization $M_{\rm s}$, although they contain polycrystalline YIG layers on Pt layers as well as single-crystalline YIG layers on GGG. In the samples, we observed clear LSSE signals and found that the LSSE thermoelectric power factor (PF) increases monotonically with increasing $n$; the PF of the [YIG/Pt]$_5$ sample is enhanced by a factor of $\sim 28$ compared to that of [YIG/Pt]$_1$. This work may provide a guideline for developing future multilayerbased LSSE devices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.02129v1-abstract-full').style.display = 'none'; document.getElementById('1901.02129v1-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 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2019. </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">21 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Appl. Phys. Lett. 113, 262402 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1705.00747">arXiv:1705.00747</a> <span> [<a href="https://arxiv.org/pdf/1705.00747">pdf</a>, <a href="https://arxiv.org/ps/1705.00747">ps</a>, <a href="https://arxiv.org/format/1705.00747">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/10.7566/JPSJ.87.023706">10.7566/JPSJ.87.023706 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Anomalous ^{125}Te Nuclear Spin Relaxation Coincident with Charge Kondo Behavior in Superconducting Pb_{1-x}Tl_{x}Te </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Mukuda%2C+H">H. Mukuda</a>, <a href="/search/cond-mat?searchtype=author&query=Matsumura%2C+T">T. Matsumura</a>, <a href="/search/cond-mat?searchtype=author&query=Maki%2C+S">S. Maki</a>, <a href="/search/cond-mat?searchtype=author&query=Yashima%2C+M">M. Yashima</a>, <a href="/search/cond-mat?searchtype=author&query=Kitaoka%2C+Y">Y. Kitaoka</a>, <a href="/search/cond-mat?searchtype=author&query=Miyake%2C+K">K. Miyake</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">H. Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=Giraldo-Gallo%2C+P">P. Giraldo-Gallo</a>, <a href="/search/cond-mat?searchtype=author&query=Geballe%2C+T+H">T. H. Geballe</a>, <a href="/search/cond-mat?searchtype=author&query=Fisher%2C+I+R">I. R. Fisher</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="1705.00747v2-abstract-short" style="display: inline;"> We report a ^{125}Te-NMR study of single-crystalline Pb_{1-x}Tl_{x}Te for x= 0 (undoped non-superconducting "parent"), 0.35 at% (doped but on the borderline of superconductivity), and 1.0 at% (superconducting, with a critical temperature Tc ~ 1.0 K). The Knight shift in the normal state is enhanced as x increases, corresponding to an increase in the average density of states (DOS). The NMR line-wi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.00747v2-abstract-full').style.display = 'inline'; document.getElementById('1705.00747v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1705.00747v2-abstract-full" style="display: none;"> We report a ^{125}Te-NMR study of single-crystalline Pb_{1-x}Tl_{x}Te for x= 0 (undoped non-superconducting "parent"), 0.35 at% (doped but on the borderline of superconductivity), and 1.0 at% (superconducting, with a critical temperature Tc ~ 1.0 K). The Knight shift in the normal state is enhanced as x increases, corresponding to an increase in the average density of states (DOS). The NMR line-width also increases significantly with increasing x, indicative of a strong spatial variation in the local DOS surrounding each Tl dopant. Remarkably, for the superconducting composition, the ^{125}Te nuclear spin relaxation rate (1/T1T) for Te ions that are close to the Tl dopants is unexpectedly enhanced in the normal state below a characteristic temperature of ~10 K. This temperature coincides with the temperature below which the normal state resistivity experiences an upturn. Such a simultaneous upturn in both the resistivity and (1/T1T) is highly anomalous, and puts Pb_{1-x}Tl_{x}Te in a distinct new class of doped semiconductors. These observations provide microscopic evidence for dynamical charge fluctuations in the absence of paramagnetism, and are consistent with expectations for charge Kondo behavior associated with the Tl dopant ions. In contrast, such anomalies were not detected in the non-superconducting samples (x=0 and 0.35 at%), suggesting a connection between dynamical valence fluctuations and the occurrence of superconductivity in Pb_{1-x}Tl_{x}Te. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.00747v2-abstract-full').style.display = 'none'; document.getElementById('1705.00747v2-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 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2017. </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 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. Phys. Soc. Jpn., 87, 023706 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.08590">arXiv:1512.08590</a> <span> [<a href="https://arxiv.org/pdf/1512.08590">pdf</a>, <a href="https://arxiv.org/ps/1512.08590">ps</a>, <a href="https://arxiv.org/format/1512.08590">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.93.125209">10.1103/PhysRevB.93.125209 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Anisotropy, phonon modes, and free charge carrier parameters in monoclinic $尾$-gallium oxide single crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Schubert%2C+M">M. Schubert</a>, <a href="/search/cond-mat?searchtype=author&query=Korlacki%2C+R">R. Korlacki</a>, <a href="/search/cond-mat?searchtype=author&query=Knight%2C+S">S. Knight</a>, <a href="/search/cond-mat?searchtype=author&query=Hofmann%2C+T">T. Hofmann</a>, <a href="/search/cond-mat?searchtype=author&query=Sch%C3%B6che%2C+S">S. Sch枚che</a>, <a href="/search/cond-mat?searchtype=author&query=Darakchieva%2C+V">V. Darakchieva</a>, <a href="/search/cond-mat?searchtype=author&query=Janz%C3%A9n%2C+E">E. Janz茅n</a>, <a href="/search/cond-mat?searchtype=author&query=Monemar%2C+B">B. Monemar</a>, <a href="/search/cond-mat?searchtype=author&query=Gogova%2C+D">D. Gogova</a>, <a href="/search/cond-mat?searchtype=author&query=Thieu%2C+Q+-">Q. -T. Thieu</a>, <a href="/search/cond-mat?searchtype=author&query=Togashi%2C+R">R. Togashi</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">H. Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=Kumagai%2C+Y">Y. Kumagai</a>, <a href="/search/cond-mat?searchtype=author&query=Goto%2C+K">K. Goto</a>, <a href="/search/cond-mat?searchtype=author&query=Kuramata%2C+A">A. Kuramata</a>, <a href="/search/cond-mat?searchtype=author&query=Yamakoshi%2C+S">S. Yamakoshi</a>, <a href="/search/cond-mat?searchtype=author&query=Higashiwaki%2C+M">M. Higashiwaki</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="1512.08590v1-abstract-short" style="display: inline;"> We derive a dielectric function tensor model approach to render the optical response of monoclinic and triclinic symmetry materials with multiple uncoupled infrared and farinfrared active modes. We apply our model approach to monoclinic $尾$-Ga$_2$O$_3$ single crystal samples. Surfaces cut under different angles from a bulk crystal, (010) and ($\bar{2}$01), are investigated by generalized spectrosc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08590v1-abstract-full').style.display = 'inline'; document.getElementById('1512.08590v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.08590v1-abstract-full" style="display: none;"> We derive a dielectric function tensor model approach to render the optical response of monoclinic and triclinic symmetry materials with multiple uncoupled infrared and farinfrared active modes. We apply our model approach to monoclinic $尾$-Ga$_2$O$_3$ single crystal samples. Surfaces cut under different angles from a bulk crystal, (010) and ($\bar{2}$01), are investigated by generalized spectroscopic ellipsometry within infrared and farinfrared spectral regions. We determine the frequency dependence of 4 independent $尾$-Ga$_2$O$_3$ Cartesian dielectric function tensor elements by matching large sets of experimental data using a point by point data inversion approach. From matching our monoclinic model to the obtained 4 dielectric function tensor components, we determine all infared and farinfrared active transverse optic phonon modes with $A_u$ and $B_u$ symmetry, and their eigenvectors within the monoclinic lattice. We find excellent agreement between our model results and results of density functional theory calculations. We derive and discuss the frequencies of longitudinal optical phonons in $尾$-Ga$_2$O$_3$. We derive and report density and anisotropic mobility parameters of the free charge carriers within the tin doped crystals. We discuss the occurrence of longitudinal phonon plasmon coupled modes in $尾$-Ga$_2$O$_3$ and provide their frequencies and eigenvectors. We also discuss and present monoclinic dielectric constants for static electric fields and frequencies above the reststrahlen range, and we provide a generalization of the Lyddane-Sachs-Teller relation for monoclinic lattices with infrared and farinfrared active modes. We find that the generalized Lyddane-Sachs-Teller relation is fulfilled excellently for $尾$-Ga$_2$O$_3$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08590v1-abstract-full').style.display = 'none'; document.getElementById('1512.08590v1-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 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">18 pages, 12 figures, 105 references; Presented at IWGO 2015 Nov. 4th, Kyoto, Japan</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. B 93, 125209 (1-18) (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.1684">arXiv:1205.1684</a> <span> [<a href="https://arxiv.org/pdf/1205.1684">pdf</a>, <a href="https://arxiv.org/format/1205.1684">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> <p class="title is-5 mathjax"> Cooper Pair Breakup in YBCO under Strong Terahertz Fields </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Glossner%2C+A">Andreas Glossner</a>, <a href="/search/cond-mat?searchtype=author&query=Zhang%2C+C">Caihong Zhang</a>, <a href="/search/cond-mat?searchtype=author&query=Kikuta%2C+S">Shinya Kikuta</a>, <a href="/search/cond-mat?searchtype=author&query=Kawayama%2C+I">Iwao Kawayama</a>, <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">Hironaru Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%BCller%2C+P">Paul M眉ller</a>, <a href="/search/cond-mat?searchtype=author&query=Tonouchi%2C+M">Masayoshi Tonouchi</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="1205.1684v1-abstract-short" style="display: inline;"> We show that strong electric fields of ~ 30 kV cm^(-1) at terahertz frequencies can significantly weaken the superconducting characteristics of cuprate superconductors. High-power terahertz time-domain spectroscopy (THz-TDS) was used to investigate the in-plane conductivity of YBa2Cu3O7-delta (YBCO) with highly intense single-cycle terahertz pulses. Even though the terahertz photon energy (~ 1.5 m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.1684v1-abstract-full').style.display = 'inline'; document.getElementById('1205.1684v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.1684v1-abstract-full" style="display: none;"> We show that strong electric fields of ~ 30 kV cm^(-1) at terahertz frequencies can significantly weaken the superconducting characteristics of cuprate superconductors. High-power terahertz time-domain spectroscopy (THz-TDS) was used to investigate the in-plane conductivity of YBa2Cu3O7-delta (YBCO) with highly intense single-cycle terahertz pulses. Even though the terahertz photon energy (~ 1.5 meV) was significantly smaller than the energy gap in YBCO (~ 20-30 meV), the optical conductivity was highly sensitive to the field strength of the applied terahertz transients. Possibly, this is due to an ultrafast, field-induced modification of the superconductor's effective coupling function, leading to a massive Cooper pair breakup. The effect was evident for several YBCO thin films on MgO and LSAT substrates. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.1684v1-abstract-full').style.display = 'none'; document.getElementById('1205.1684v1-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> 8 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2012. </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 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/cond-mat/0106132">arXiv:cond-mat/0106132</a> <span> [<a href="https://arxiv.org/pdf/cond-mat/0106132">pdf</a>, <a href="https://arxiv.org/ps/cond-mat/0106132">ps</a>, <a href="https://arxiv.org/format/cond-mat/0106132">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/10.1209/epl/i2002-00349-x">10.1209/epl/i2002-00349-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Partial and macroscopic phase coherences in underdoped Bi${}_{2}$Sr${}_{2}$CaCu${}_{2}$O${}_{8+未}$ thin film </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Murakami%2C+H">H. Murakami</a>, <a href="/search/cond-mat?searchtype=author&query=Kiwa%2C+T">T. Kiwa</a>, <a href="/search/cond-mat?searchtype=author&query=Kida%2C+N">N. Kida</a>, <a href="/search/cond-mat?searchtype=author&query=Tonouchi%2C+M">M. Tonouchi</a>, <a href="/search/cond-mat?searchtype=author&query=Uchiyama%2C+T">T. Uchiyama</a>, <a href="/search/cond-mat?searchtype=author&query=Iguchi%2C+I">I. Iguchi</a>, <a href="/search/cond-mat?searchtype=author&query=Wang%2C+Z">Z. Wang</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="cond-mat/0106132v3-abstract-short" style="display: inline;"> A combined study with use of time-domain pump-probe spectroscopy and time-domain terahertz transmission spectroscopy have been carried out on an underdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+未}$ thin film. It was observed that the low energy multi-excitation states were decomposed into superconducting gap and pseudogap. The pseudogap locally opens below $T^*{\simeq}210$ K simultaneously with the appearan… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('cond-mat/0106132v3-abstract-full').style.display = 'inline'; document.getElementById('cond-mat/0106132v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="cond-mat/0106132v3-abstract-full" style="display: none;"> A combined study with use of time-domain pump-probe spectroscopy and time-domain terahertz transmission spectroscopy have been carried out on an underdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+未}$ thin film. It was observed that the low energy multi-excitation states were decomposed into superconducting gap and pseudogap. The pseudogap locally opens below $T^*{\simeq}210$ K simultaneously with the appearance of the high-frequency partial pairs around 1.3 THz. With decreasing temperature, the number of the local domains with the partial phase coherence increased and saturated near 100 K, and the macroscopic superconductivity appeared below 76 K through the superconductivity fluctuation state below 100 K. These experimental results indicate that the pseudogap makes an important role for realization of the superconductivity as a precursor to switch from the partial to the macroscopic phase coherence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('cond-mat/0106132v3-abstract-full').style.display = 'none'; document.getElementById('cond-mat/0106132v3-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 October, 2001; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 June, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2001. </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">Revtex4, 4 pages, 4 figures</span> </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 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