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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/2312.02654">arXiv:2312.02654</a> <span> [<a href="https://arxiv.org/pdf/2312.02654">pdf</a>, <a href="https://arxiv.org/format/2312.02654">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="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> THz-Driven Coherent Magnetization Dynamics in a Labyrinth Domain State </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Riepp%2C+M">M Riepp</a>, <a href="/search/cond-mat?searchtype=author&query=Philippi-Kobs%2C+A">A Philippi-Kobs</a>, <a href="/search/cond-mat?searchtype=author&query=Mueller%2C+L">L Mueller</a>, <a href="/search/cond-mat?searchtype=author&query=Froemter%2C+R">R Froemter</a>, <a href="/search/cond-mat?searchtype=author&query=Roseker%2C+W">W Roseker</a>, <a href="/search/cond-mat?searchtype=author&query=Rysov%2C+R">R Rysov</a>, <a href="/search/cond-mat?searchtype=author&query=Walther%2C+M">M Walther</a>, <a href="/search/cond-mat?searchtype=author&query=Bagschik%2C+K">K Bagschik</a>, <a href="/search/cond-mat?searchtype=author&query=Hennes%2C+M">M Hennes</a>, <a href="/search/cond-mat?searchtype=author&query=Gupta%2C+D">D Gupta</a>, <a href="/search/cond-mat?searchtype=author&query=Marotzke%2C+S">S Marotzke</a>, <a href="/search/cond-mat?searchtype=author&query=Bajt%2C+S">S Bajt</a>, <a href="/search/cond-mat?searchtype=author&query=Pan%2C+R">R Pan</a>, <a href="/search/cond-mat?searchtype=author&query=Golz%2C+T">T Golz</a>, <a href="/search/cond-mat?searchtype=author&query=Stojanovic%2C+N">N Stojanovic</a>, <a href="/search/cond-mat?searchtype=author&query=Boeglin%2C+C">C Boeglin</a>, <a href="/search/cond-mat?searchtype=author&query=Gruebel%2C+G">G Gruebel</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="2312.02654v1-abstract-short" style="display: inline;"> Terahertz (THz) light pulses can be used for an ultrafast coherent manipulation of the magnetization. Driving the magnetization at THz frequencies is currently the fastest way of writing magnetic information in ferromagnets. Using time-resolved resonant magnetic scattering, we gain new insights to the THz-driven coherent magnetization dynamics on nanometer length scales. We observe ultrafast demag… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.02654v1-abstract-full').style.display = 'inline'; document.getElementById('2312.02654v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.02654v1-abstract-full" style="display: none;"> Terahertz (THz) light pulses can be used for an ultrafast coherent manipulation of the magnetization. Driving the magnetization at THz frequencies is currently the fastest way of writing magnetic information in ferromagnets. Using time-resolved resonant magnetic scattering, we gain new insights to the THz-driven coherent magnetization dynamics on nanometer length scales. We observe ultrafast demagnetization and coherent magnetization oscillations that are governed by a time-dependent damping. This damping is determined by the interplay of lattice heating and magnetic anisotropy reduction revealing an upper speed limit for THz-induced magnetization switching. We show that in the presence of nanometer-sized magnetic domains, the ultrafast magnetization oscillations are associated with a correlated beating of the domain walls. The overall domain structure thereby remains largely unaffected which highlights the applicability of THz-induced switching on the nanoscale. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.02654v1-abstract-full').style.display = 'none'; document.getElementById('2312.02654v1-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 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">10 pages, 8 figures and 54 references</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.11043">arXiv:2301.11043</a> <span> [<a href="https://arxiv.org/pdf/2301.11043">pdf</a>, <a href="https://arxiv.org/format/2301.11043">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Biological Physics">physics.bio-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</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.jpcb.3c02492">10.1021/acs.jpcb.3c02492 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Coherent X-ray Scattering Reveals Nanoscale Fluctuations in Hydrated Proteins </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Bin%2C+M">Maddalena Bin</a>, <a href="/search/cond-mat?searchtype=author&query=Reiser%2C+M">Mario Reiser</a>, <a href="/search/cond-mat?searchtype=author&query=Filianina%2C+M">Mariia Filianina</a>, <a href="/search/cond-mat?searchtype=author&query=Berkowicz%2C+S">Sharon Berkowicz</a>, <a href="/search/cond-mat?searchtype=author&query=Das%2C+S">Sudipta Das</a>, <a href="/search/cond-mat?searchtype=author&query=Timmermann%2C+S">Sonja Timmermann</a>, <a href="/search/cond-mat?searchtype=author&query=Roseker%2C+W">Wojciech Roseker</a>, <a href="/search/cond-mat?searchtype=author&query=Bauer%2C+R">Robert Bauer</a>, <a href="/search/cond-mat?searchtype=author&query=%C3%96str%C3%B6m%2C+J">Jonatan 脰str枚m</a>, <a href="/search/cond-mat?searchtype=author&query=Karina%2C+A">Aigerim Karina</a>, <a href="/search/cond-mat?searchtype=author&query=Amann-Winkel%2C+K">Katrin Amann-Winkel</a>, <a href="/search/cond-mat?searchtype=author&query=Ladd-Parada%2C+M">Marjorie Ladd-Parada</a>, <a href="/search/cond-mat?searchtype=author&query=Westermeier%2C+F">Fabian Westermeier</a>, <a href="/search/cond-mat?searchtype=author&query=Sprung%2C+M">Michael Sprung</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%B6ller%2C+J">Johannes M枚ller</a>, <a href="/search/cond-mat?searchtype=author&query=Lehmk%C3%BChler%2C+F">Felix Lehmk眉hler</a>, <a href="/search/cond-mat?searchtype=author&query=Gutt%2C+C">Christian Gutt</a>, <a href="/search/cond-mat?searchtype=author&query=Perakis%2C+F">Fivos Perakis</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="2301.11043v1-abstract-short" style="display: inline;"> Hydrated proteins undergo a transition in the deeply supercooled regime, which is attributed to rapid changes in hydration water and protein structural dynamics. Here, we investigate the nanoscale stress relaxation in hydrated lysozyme proteins stimulated and probed by X-ray Photon Correlation Spectroscopy (XPCS). This approach allows us to access the nanoscale dynamic response in the deeply super… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11043v1-abstract-full').style.display = 'inline'; document.getElementById('2301.11043v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.11043v1-abstract-full" style="display: none;"> Hydrated proteins undergo a transition in the deeply supercooled regime, which is attributed to rapid changes in hydration water and protein structural dynamics. Here, we investigate the nanoscale stress relaxation in hydrated lysozyme proteins stimulated and probed by X-ray Photon Correlation Spectroscopy (XPCS). This approach allows us to access the nanoscale dynamic response in the deeply supercooled regime (T = 180 K) which is typically not accessible through equilibrium methods. The relaxation time constants exhibit Arrhenius temperature dependence upon cooling with a minimum in the Kohlrausch-Williams-Watts exponent at T = 227 K. The observed minimum is attributed to an increase in dynamical heterogeneity, which coincides with enhanced fluctuations observed in the two-time correlation functions and a maximum in the dynamic susceptibility quantified by the normalised variance $蠂_T$. Our study provides new insights into X-ray stimulated stress relaxation and the underlying mechanisms behind spatio-temporal fluctuations in biological granular materials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11043v1-abstract-full').style.display = 'none'; document.getElementById('2301.11043v1-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 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.06350">arXiv:2201.06350</a> <span> [<a href="https://arxiv.org/pdf/2201.06350">pdf</a>, <a href="https://arxiv.org/format/2201.06350">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/10.1107/S1600577522008414">10.1107/S1600577522008414 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Hagstr%C3%B6m%2C+N+Z">Nanna Zhou Hagstr枚m</a>, <a href="/search/cond-mat?searchtype=author&query=Schneider%2C+M">Michael Schneider</a>, <a href="/search/cond-mat?searchtype=author&query=Kerber%2C+N">Nico Kerber</a>, <a href="/search/cond-mat?searchtype=author&query=Yaroslavtsev%2C+A">Alexander Yaroslavtsev</a>, <a href="/search/cond-mat?searchtype=author&query=Parra%2C+E+B">Erick Burgos Parra</a>, <a href="/search/cond-mat?searchtype=author&query=Beg%2C+M">Marijan Beg</a>, <a href="/search/cond-mat?searchtype=author&query=Lang%2C+M">Martin Lang</a>, <a href="/search/cond-mat?searchtype=author&query=G%C3%BCnther%2C+C+M">Christian M. G眉nther</a>, <a href="/search/cond-mat?searchtype=author&query=Seng%2C+B">Boris Seng</a>, <a href="/search/cond-mat?searchtype=author&query=Kammerbauer%2C+F">Fabian Kammerbauer</a>, <a href="/search/cond-mat?searchtype=author&query=Popescu%2C+H">Horia Popescu</a>, <a href="/search/cond-mat?searchtype=author&query=Pancaldi%2C+M">Matteo Pancaldi</a>, <a href="/search/cond-mat?searchtype=author&query=Neeraj%2C+K">Kumar Neeraj</a>, <a href="/search/cond-mat?searchtype=author&query=Polley%2C+D">Debanjan Polley</a>, <a href="/search/cond-mat?searchtype=author&query=Jangid%2C+R">Rahul Jangid</a>, <a href="/search/cond-mat?searchtype=author&query=Hrkac%2C+S+B">Stjepan B. Hrkac</a>, <a href="/search/cond-mat?searchtype=author&query=Patel%2C+S+K+K">Sheena K. K. Patel</a>, <a href="/search/cond-mat?searchtype=author&query=Ovcharenko%2C+S">Sergei Ovcharenko</a>, <a href="/search/cond-mat?searchtype=author&query=Turenne%2C+D">Diego Turenne</a>, <a href="/search/cond-mat?searchtype=author&query=Ksenzov%2C+D">Dmitriy Ksenzov</a>, <a href="/search/cond-mat?searchtype=author&query=Boeglin%2C+C">Christine Boeglin</a>, <a href="/search/cond-mat?searchtype=author&query=Pronin%2C+I">Igor Pronin</a>, <a href="/search/cond-mat?searchtype=author&query=Baidakova%2C+M">Marina Baidakova</a>, <a href="/search/cond-mat?searchtype=author&query=Schmising%2C+C+v+K">Clemens von Korff Schmising</a>, <a href="/search/cond-mat?searchtype=author&query=Borchert%2C+M">Martin Borchert</a> , et al. (75 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="2201.06350v2-abstract-short" style="display: inline;"> The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, we presen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.06350v2-abstract-full').style.display = 'inline'; document.getElementById('2201.06350v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.06350v2-abstract-full" style="display: none;"> The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, we present the results from the first megahertz repetition rate X-ray scattering experiments at the Spectroscopy and Coherent Scattering (SCS) instrument of the European XFEL. We illustrate the experimental capabilities that the SCS instrument offers, resulting from the operation at MHz repetition rates and the availability of the novel DSSC 2D imaging detector. Time-resolved magnetic X-ray scattering and holographic imaging experiments in solid state samples were chosen as representative, providing an ideal test-bed for operation at megahertz rates. Our results are relevant and applicable to any other non-destructive XFEL experiments in the soft X-ray range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.06350v2-abstract-full').style.display = 'none'; document.getElementById('2201.06350v2-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> 20 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 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">13 pages, 5 figures. Supplementary Information as ancillary file</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Synchrotron Rad. (2022), 29 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1207.2487">arXiv:1207.2487</a> <span> [<a href="https://arxiv.org/pdf/1207.2487">pdf</a>, <a href="https://arxiv.org/ps/1207.2487">ps</a>, <a href="https://arxiv.org/format/1207.2487">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> <p class="title is-5 mathjax"> Supplemental Material for "High Contrast X-ray Speckle from Atomic-Scale Order in Liquids and Glasses" </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Hruszkewycz%2C+S+O">S. O. Hruszkewycz</a>, <a href="/search/cond-mat?searchtype=author&query=Sutton%2C+M">M. Sutton</a>, <a href="/search/cond-mat?searchtype=author&query=Fuoss%2C+P+H">P. H. Fuoss</a>, <a href="/search/cond-mat?searchtype=author&query=Adams%2C+B">B. Adams</a>, <a href="/search/cond-mat?searchtype=author&query=Rosenkranz%2C+S">S. Rosenkranz</a>, <a href="/search/cond-mat?searchtype=author&query=Ludwig%2C+K+F">K. F. Ludwig Jr.</a>, <a href="/search/cond-mat?searchtype=author&query=Roseker%2C+W">W. Roseker</a>, <a href="/search/cond-mat?searchtype=author&query=Fritz%2C+D">D. Fritz</a>, <a href="/search/cond-mat?searchtype=author&query=Cammarata%2C+M">M. Cammarata</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">D. Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Lee%2C+S">S. Lee</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H">H. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Gutt%2C+C">C. Gutt</a>, <a href="/search/cond-mat?searchtype=author&query=Robert%2C+A">A. Robert</a>, <a href="/search/cond-mat?searchtype=author&query=Gruebel%2C+G">G. Gruebel</a>, <a href="/search/cond-mat?searchtype=author&query=Stephenson%2C+G+B">G. B. Stephenson</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="1207.2487v1-abstract-short" style="display: inline;"> This supplemental material gives additional detail on Experimental Methods and Hard X-ray FEL Source Characteristics, Calculation of Maximum Speckle Contrast, Extracting Contrast of Weak Speckle Patterns, Estimated Temperature Increase from X-ray Absorption, Split-Pulse XPCS Feasibility, and Sample Disturbance During Single Pulses. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1207.2487v1-abstract-full" style="display: none;"> This supplemental material gives additional detail on Experimental Methods and Hard X-ray FEL Source Characteristics, Calculation of Maximum Speckle Contrast, Extracting Contrast of Weak Speckle Patterns, Estimated Temperature Increase from X-ray Absorption, Split-Pulse XPCS Feasibility, and Sample Disturbance During Single Pulses. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.2487v1-abstract-full').style.display = 'none'; document.getElementById('1207.2487v1-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 July, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">This is the supplemental material for arXiv:1207.2458 by the same authors entitled: "High Contrast X-ray Speckle from Atomic-Scale Order in Liquids and Glasses"</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1207.2458">arXiv:1207.2458</a> <span> [<a href="https://arxiv.org/pdf/1207.2458">pdf</a>, <a href="https://arxiv.org/ps/1207.2458">ps</a>, <a href="https://arxiv.org/format/1207.2458">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/PhysRevLett.109.185502">10.1103/PhysRevLett.109.185502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High Contrast X-ray Speckle from Atomic-Scale Order in Liquids and Glasses </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Hruszkewycz%2C+S+O">S. O. Hruszkewycz</a>, <a href="/search/cond-mat?searchtype=author&query=Sutton%2C+M">M. Sutton</a>, <a href="/search/cond-mat?searchtype=author&query=Fuoss%2C+P+H">P. H. Fuoss</a>, <a href="/search/cond-mat?searchtype=author&query=Adams%2C+B">B. Adams</a>, <a href="/search/cond-mat?searchtype=author&query=Rosenkranz%2C+S">S. Rosenkranz</a>, <a href="/search/cond-mat?searchtype=author&query=Ludwig%2C+K+F">K. F. Ludwig Jr.</a>, <a href="/search/cond-mat?searchtype=author&query=Roseker%2C+W">W. Roseker</a>, <a href="/search/cond-mat?searchtype=author&query=Fritz%2C+D">D. Fritz</a>, <a href="/search/cond-mat?searchtype=author&query=Cammarata%2C+M">M. Cammarata</a>, <a href="/search/cond-mat?searchtype=author&query=Zhu%2C+D">D. Zhu</a>, <a href="/search/cond-mat?searchtype=author&query=Lee%2C+S">S. Lee</a>, <a href="/search/cond-mat?searchtype=author&query=Lemke%2C+H">H. Lemke</a>, <a href="/search/cond-mat?searchtype=author&query=Gutt%2C+C">C. Gutt</a>, <a href="/search/cond-mat?searchtype=author&query=Robert%2C+A">A. Robert</a>, <a href="/search/cond-mat?searchtype=author&query=Gruebel%2C+G">G. Gruebel</a>, <a href="/search/cond-mat?searchtype=author&query=Stephenson%2C+G+B">G. B. Stephenson</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="1207.2458v1-abstract-short" style="display: inline;"> The availability of ultrafast pulses of coherent hard x-rays from the Linac Coherent Light Source opens new opportunities for studies of atomic-scale dynamics in amorphous materials. Here we show that single ultrafast coherent x-ray pulses can be used to observe the speckle contrast in the high-angle diffraction from liquid Ga and glassy Ni2Pd2P and B2O3. We determine the thresholds above which th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.2458v1-abstract-full').style.display = 'inline'; document.getElementById('1207.2458v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1207.2458v1-abstract-full" style="display: none;"> The availability of ultrafast pulses of coherent hard x-rays from the Linac Coherent Light Source opens new opportunities for studies of atomic-scale dynamics in amorphous materials. Here we show that single ultrafast coherent x-ray pulses can be used to observe the speckle contrast in the high-angle diffraction from liquid Ga and glassy Ni2Pd2P and B2O3. We determine the thresholds above which the x-ray pulses disturb the atomic arrangements. Furthermore, high contrast speckle is observed in scattering patterns from the glasses integrated over many pulses, demonstrating that the source and optics are sufficiently stable for x-ray photon correlation spectroscopy studies of dynamics over a wide range of time scales. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.2458v1-abstract-full').style.display = 'none'; document.getElementById('1207.2458v1-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 July, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2012. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1006.0756">arXiv:1006.0756</a> <span> [<a href="https://arxiv.org/pdf/1006.0756">pdf</a>, <a href="https://arxiv.org/ps/1006.0756">ps</a>, <a href="https://arxiv.org/format/1006.0756">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="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> Toward a single mode Free Electron Laser for coherent hard x-ray experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Lee%2C+S">Sooheyong Lee</a>, <a href="/search/cond-mat?searchtype=author&query=Huang%2C+Z">Zhirong Huang</a>, <a href="/search/cond-mat?searchtype=author&query=Ding%2C+Y">Yuantao Ding</a>, <a href="/search/cond-mat?searchtype=author&query=Emma%2C+P">Paul Emma</a>, <a href="/search/cond-mat?searchtype=author&query=Roseker%2C+W">Wojciech Roseker</a>, <a href="/search/cond-mat?searchtype=author&query=Gruebel%2C+G">Gerhard Gruebel</a>, <a href="/search/cond-mat?searchtype=author&query=Robert%2C+A">Aymeric Robert</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="1006.0756v1-abstract-short" style="display: inline;"> The fluctuations of the longitudinal coherence length expected from the world's first hard X-ray Free Electron Laser, the Linac Coherent Light Source, are investigated. We analyze, on a shot-to-shot basis, series of power spectra generated from 1D-FEL simulations. We evaluate how the intrinsic noise in the spectral profile of the X-ray beam reflects on its longitudinal coherence length. We show th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.0756v1-abstract-full').style.display = 'inline'; document.getElementById('1006.0756v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1006.0756v1-abstract-full" style="display: none;"> The fluctuations of the longitudinal coherence length expected from the world's first hard X-ray Free Electron Laser, the Linac Coherent Light Source, are investigated. We analyze, on a shot-to-shot basis, series of power spectra generated from 1D-FEL simulations. We evaluate how the intrinsic noise in the spectral profile of the X-ray beam reflects on its longitudinal coherence length. We show that the spectral stability of the LCLS beam will allow coherent X-ray experiments with a reasonable acquisition time. We also propose a scheme to deliver single-mode X-ray radiation using a narrow bandpass monochromator. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.0756v1-abstract-full').style.display = 'none'; document.getElementById('1006.0756v1-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 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2010. </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 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