# Eur.XFEL

 2017-12-0717:48 [PUBDB-2017-12919] Journal Article et al Surface, final state, and spin effects in the valence-band photoemission spectra of LaCoO$_{3}$ (001) Physical review / B 96(20), 205144 (2017) [10.1103/PhysRevB.96.205144]   The electronic structure of a LaCoO$_{3}$(001) perovskite is analyzed using simulated and measured angle-resolved valence-band photoemission spectroscopy data with emphasis on the effects of the surface truncation, the final state effects, and the spin degeneracy removal. Supercell simulations reveal instability towards the formation of nonuniform spin polarization in the Co-containing layers under tensile stress [...] OpenAccess: PDF PDF (PDFA); 2017-12-0109:45 [PUBDB-2017-12644] Journal Article et al Non-uniform nanosecond gate-delay of hybrid pixel detectors Journal of synchrotron radiation 24(5), 1082 - 1085 (2017) [10.1107/S1600577517009158]   A simple experiment to characterize the gating properties of X-ray area detectors using pulsed X-ray sources is presented. For a number of time-resolved experiments the gating uniformity of area detectors is important. [...] Restricted: PDF PDF (PDFA); 2017-12-0109:30 [PUBDB-2017-12642] Journal Article et al High-energy x-ray diffraction from surfaces and nanoparticles Physical review / B 96(19), 195433 (2017) [10.1103/PhysRevB.96.195433]   High-energy surface-sensitive x-ray diffraction (HESXRD) is a powerful high-energy photon technique (E>70 keV) that has in recent years proven to allow a fast data acquisition for the 3D structure determination of surfaces and nanoparticles under in situ and operando conditions. The use of a large-area detector facilitates thedirect collection of nearly distortion-free diffraction patterns over a wide q range, including crystal truncation rods perpendicular to the surface and large-area reciprocal space maps from epitaxial nanoparticles, which is not possible in the conventional low-photon energy approach (E=10−20 keV). [...] OpenAccess: PDF PDF (PDFA); 2017-11-2812:36 [PUBDB-2017-12442] Report/Dissertation / PhD Thesis Wurth, W. Ultrafast X-ray Spectroscopies of Transition Metal Complexes Relevant for Catalysis [XFEL.EU THESIS-2017-002] 207 pp. (2017) [10.3204/PUBDB-2017-12442] = Dissertation, University of Hamburg, 2017   Transition metal (TM) complexes are ubiquitous in both technological and biological catalytic systems. For a detailed understanding of their reactivity, a knowledge of the fundamental processes during chemical reactions is crucial. [...] OpenAccess: PDF; External link: Fulltext 2017-11-2612:49 [PUBDB-2017-12328] Journal Article et al Correlations in Scattered X-Ray Laser Pulses Reveal Nanoscale Structural Features of Viruses Physical review letters 119(15), 158102 (2017) [10.1103/PhysRevLett.119.158102]   We use extremely bright and ultrashort pulses from an x-ray free-electron laser (XFEL) to measure correlations in x rays scattered from individual bioparticles. This allows us to go beyond the traditional crystallography and single-particle imaging approaches for structure investigations [...] OpenAccess: PDF PDF (PDFA); 2017-11-1318:29 [PUBDB-2017-11924] Poster et al Ultrafast fragmentation dynamics of Phenanthrene andPyrene after photoionization at 30.3 nm wavelength DESY Users Meeting 2017, Meeting locationHamburg, Germany, 25 Jan 2017 - 27 Jan 2017 2017-11-0910:29 [PUBDB-2017-11802] Journal Article et al Single-shot nonlinear spectroscopy in the vacuum-ultraviolet Optica 4(8), 871 - 878 (2017) [10.1364/OPTICA.4.000871]   Time-resolved spectroscopy in the vacuum/extreme ultraviolet (VUV/XUV) spectral range promises to disclose ultrafast dynamics in all states of matter. Completing a measurement within a single shot eliminates the influence of experimental parameter fluctuations and enhances its statistical significance. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2017-11-0910:16 [PUBDB-2017-11799] Journal Article et al Probing Transient Valence Orbital Changes with Picosecond Valence-to-Core X-ray Emission Spectroscopy The journal of physical chemistry / C 121(5), 2620 - 2626 (2017) [10.1021/acs.jpcc.6b12940]   We probe the dynamics of valence electrons in photoexcited [Fe(terpy)$_2$]$^{2+}$ in solution to gain deeper insight into the Fe−ligand bond changes. We use hard X-rayemission spectroscopy (XES), which combines element specificity and high penetration with sensitivity to orbital structure, making it a powerful technique for molecular studies in a wide variety of environments. [...] Published on 2017-01-17. Available in OpenAccess from 2018-01-17.: PDF; Restricted: PDF PDF (PDFA); 2017-10-2411:53 [PUBDB-2017-11523] Journal Article et al Analysis of XFEL serial diffraction data from individual crystalline fibrils IUCrJ 4(6), 795 - 811 (2017) [10.1107/S2052252517014324]   Serial diffraction data collected at the Linac Coherent Light Source from crystalline amyloid fibrils delivered in a liquid jet show that the fibrils are well oriented in the jet. At low fibril concentrations, diffraction patterns are recorded from single fibrils; these patterns are weak and contain only a few reflections [...] OpenAccess: PDF PDF (PDFA); 2017-08-3116:31 [PUBDB-2017-10204] Journal Article et al Coherent soft X-ray diffraction imaging of coliphage PR772 at the Linac coherent light source Scientific data 4, 170079 (2017) [10.1038/sdata.2017.79]   Single-particle diffraction from X-ray Free Electron Lasers offers the potential for molecular structure determination without the need for crystallization. In an effort to further develop the technique, we present a dataset of coherent soft X-ray diffraction images of Coliphage PR772 virus, collected at the Atomic Molecular Optics (AMO) beamline with pnCCD detectors in the LAMP instrument at the Linac Coherent Light Source. [...] OpenAccess: PDF PDF (PDFA);