# FS-CXS

 2018-05-1511:13 [PUBDB-2018-01959] Journal Article et al Coherent X-rays reveal the influence of cage effects on ultrafast water dynamics Nature Communications 9(1), 1917 (2018) [10.1038/s41467-018-04330-5]   The dynamics of liquid water feature a variety of time scales, ranging from extremely fast ballistic-like thermal motion, to slower molecular diffusion and hydrogen-bond rearrangements. Here, we utilize coherent X-ray pulses to investigate the sub-100 fs equilibrium dynamics of water from ambient conditions down to supercooled temperatures [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-04-1714:45 [PUBDB-2018-01732] Journal Article et al Towards ultrafast dynamics with split-pulse X-ray photon correlation spectroscopy at free electron laser sources Nature Communications 9(1), 1704 (2018) [10.1038/s41467-018-04178-9]   One of the important challenges in condensed matter science is to understand ultrafast, atomic-scale fluctuations that dictate dynamic processes in equilibrium and non-equilibrium materials. Here, we report an important step towards reaching that goal by using a state-of-the-art perfect crystal based split-and-delay system, capable of splitting individual X-ray pulses andintroducing femtosecond to nanosecond time delays. [...] OpenAccess: PDF PDF (PDFA); 2018-04-0611:32 [PUBDB-2018-01633] Journal Article et al Heterogeneous local order in self-assembled nanoparticle films revealed by X-ray Cross Corelation IUCrJ 5(3), 354 - 360 (2018) [10.1107/S2052252518005407]   We report on the self-assembly of gold nanoparticles coated with a soft poly(ethylene glycol) shell studied by X-ray cross-correlation analysis. Depending on the initial concentration of gold nanoparticles used, structurally heterogeneous films were formed [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-03-0811:38 [PUBDB-2018-01437] Journal Article et al Note: Soft X-ray transmission polarizer based on ferromagnetic thin films Review of scientific instruments 89(3), 036103 - (2018) [10.1063/1.5018396]   A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do not directly offer circularly polarized light for, e.g., X-ray magnetic circular dichroism (XMCD) measurements or holographic imaging. [...] OpenAccess: PDF PDF (PDFA); 2018-01-1014:05 [PUBDB-2018-00361] Journal Article Wagner, J. A new class of copolymer colloids with tunable, low refractive index for investigations of structure and dynamics in concentrated suspensions Colloid & polymer science 295(9), 1563 - 1574 (2017) [10.1007/s00396-017-4137-2]   Highly charged polymer colloids may serve as model systems for the investigation of condensed matter, if they self-organize to liquid-like, glassy or crystalline phases. Multiple scattering due to refractive index differences of colloidal particles and suspending medium is a serious problem when utilizing light scattering experiments for these investigations. [...] Restricted: PDF PDF (PDFA); 2017-12-2818:12 [PUBDB-2017-14145] Journal Article et al Structure and Stability of PEG- and Mixed PEG-Layer-Coated Nanoparticles at High Particle Concentrations Studied In Situ by Small-Angle X-Ray Scattering Particle & particle systems characterization 35(2), 1700319 (2018) [10.1002/ppsc.201700319]   Ligand-layer structure and stability of gold nanoparticles (AuNP) coated with α-methoxypoly(ethylene glycol)-ω-(11-mercaptoundecanoate) (PEGMUA) layers and mixed layers of PEGMUA and 11-mercaptoundecanoic acid (MUA) at high AuNP concentrations are studied in situ by small-angle X-ray scattering (SAXS). The thickness of the ligand layer is modified by the molecular weight of the PEG-ligands (2 and 5 kDa), and the PEG-grafting density is decreased by coadsorption of MUA. [...] Restricted: PDF PDF (PDFA); 2017-12-1217:23 [PUBDB-2017-13374] Master Thesis Markmann, V. Double Pulse Correlation Spectroscopy with Visible Light Hamburg : DESY , 54 pp. (2017) [10.3204/PUBDB-2017-13374] = Masterarbeit, University Of Hamburg, 2017   OpenAccess: PDF PDF (PDFA); 2017-11-2909:44 [PUBDB-2017-12487] Preprint et al Temperature dependence of the hydrogen bond network in trimethylamine N-oxide and guanidine hydrochloride–water solutions   We present an X-ray Compton scattering study on aqueous Trimethylamine N-oxide (TMAO) and guanidine hydrochloride solutions (GdnHCl) as a function of temperature. Independent from the concentration of the solvent, Compton profiles almost resemble results for liquid water as a function of temperature. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2017-11-0310:58 [PUBDB-2017-11675] Bachelor Thesis Roessle, M. Charakterisierung von Liquid Jets unter der Verwendung von Glasdüsen mit und ohne piezoelektrischen Trigger , 1-74 (2017) [10.3204/PUBDB-2017-11675] = Bachelorarbeit, Fachhochschule Lübeck, 2017   Liquid Jets finden heute Verwendung in vielen Bereichen der Wissenschaft und der Technik. In dieser Arbeit werden Liquid Jets für Röntgenstreuexperimente im Vakuum charakterisiert [...] OpenAccess: PDF PDF (PDFA); 2017-10-2416:46 [PUBDB-2017-11542] Journal Article et al Implications of a Temperature-Dependent Magnetic Anisotropy for Superparamagnetic Switching   The macroscopic magnetic moment of a superparamagnetic system has to overcome an energy barrier in order to switch its direction. This barrier is formed by magnetic anisotropies in the material and may be surmounted typically after $10^9 - 10^{12}$ attempts per second by thermal fluctuations. [...] Fulltext: PDF PDF (PDFA); External link: Fulltext