FS-PS

 2018-02-0209:02 [PUBDB-2018-00999] Journal Article et al Diffraction based Hanbury Brown and Twiss interferometry at a hard x-ray free-electron laser Scientific reports 8, 2219 (2018) [10.1038/s41598-018-19793-1]   X-ray free-electron lasers (XFELs) provide extremely bright and highly spatially coherent x-rayradiation with femtosecond pulse duration. Currently, they are widely used in biology and materialscience. [...] Restricted: PDF PDF (PDFA); 2018-01-2310:34 [PUBDB-2018-00754] Journal Article et al Transferring the entatic-state principle to copper photochemistry Nature chemistry n/a, n/a - n/a (2018) [10.1038/nchem.2916] 2018-01-1620:29 [PUBDB-2018-00668] Journal Article et al Data compression strategies for ptychographic diffraction imaging Advanced Optical Technologies 6(6), 475 – 483 (2017) [10.1515/aot-2017-0053]   Ptychography is a computational imaging method for solving inverse scattering problems. To date, the high amount of redundancy present in ptychographic data sets requires computer memory that is orders of magnitude larger than the retrieved information. [...] Published on 2017-11-18. Available in OpenAccess from 2018-11-18.: PDF PDF (PDFA); 2018-01-1211:06 [PUBDB-2018-00605] Journal Article et al Multiple timescales in the photoswitching kinetics of crystalline thin films of azobenzene-trimers Journal of physics / Condensed matter 29(43), 434001 - (2017) [10.1088/1361-648X/aa8654]   Restricted: PDF PDF (PDFA); 2018-01-1209:54 [PUBDB-2018-00586] Journal Article et al Dislocations as a boundary between charge density wave and oxygen rich phases in a cuprate high temperature superconductor Superconductor science and technology 30(3), 035016 - (2017) [10.1088/1361-6668/aa5732]   Multiple functional ionic and electronic orders are observed in high temperature superconducting cuprates. The charge density wave order is one of them and it is spatially localized in different regions of the material. [...] Published on 2017-02-06. Available in OpenAccess from 2018-02-06.: PDF PDF (PDFA); Restricted: PDF PDF (PDFA); 2018-01-1208:27 [PUBDB-2018-00577] Journal Article et al Metal nanoparticle film–based room temperature Coulomb transistor Science advances 3(7), e1603191 - (2017) [10.1126/sciadv.1603191]   Single-electron transistors would represent an approach to developing less power–consuming microelectronic devices if room temperature operation and industry-compatible fabrication were possible. We present a concept based on stripes of small, self-assembled, colloidal, metal nanoparticles on a back-gate device architecture, which leads to well-defined and well-controllable transistor characteristics. [...] OpenAccess: PDF PDF (PDFA); 2018-01-1114:09 [PUBDB-2018-00506] Journal Article et al Phase retrieval via propagation-based interferometry Physical review / A 95(3), 033819 (2017) [10.1103/PhysRevA.95.033819]   We present an extension of the Gerchberg-Saxton algorithm to allow for phase retrieval from interferometric data recorded at multiple sample-detector distances. A system of coupled waves is introduced where the information exchange can be controlled by use of relaxation parameters [...] OpenAccess: PDF PDF (PDFA); 2018-01-1112:34 [PUBDB-2018-00471] Journal Article et al Soft-x-ray-induced ionization and fragmentation dynamics of $Sc_{3}N@C_{80}$ investigated using an ion-ion-coincidence momentum-imaging technique Physical review / A 96(3), 033408 (2017) [10.1103/PhysRevA.96.033408]   The fragmentation dynamics of an endohedral fullerene, Sc$_3$N@C$_{80}$, after absorption of a soft-x-ray photon, has been studied with an ion-ion-coincidence momentum-imaging technique. Molecular inner-shell ionization at 406.5 eV, targeting the Sc $(2p)$ shell of the encapsulated Sc$_3$N moiety and the C $(1s)$ shell of the C$_{80}$ cage, leads to the cage fragmentation through evaporation of C$_2$, emission of small molecular carbon ions (C$_{n}^{+}, n≤24)$, and release of Sc and Sc-containing ions associated with the carbon cage opening or fragmentation [...] OpenAccess: PDF PDF (PDFA); 2018-01-1111:34 [PUBDB-2018-00468] Journal Article et al Quantitative ptychographic bio-imaging in the water window Optics express 26(2), 1237 - 1254 (2018) [10.1364/OE.26.001237]   Coherent X-ray ptychography is a tool for highly dose efficient lensless nano-imaging of biological samples. We have used partially coherent soft X-ray synchrotron radiation to obtain a quantitative image of a laterally extended, dried, and unstained fibroblast cell by ptychography [...] OpenAccess: PDF PDF (PDFA); 2018-01-1014:44 [PUBDB-2018-00377] Journal Article et al Nanoparticle formation of deposited $Ag_{n}$-clusters on free-standing graphene Surface science 665, 108 - 113 (2017) [10.1016/j.susc.2017.06.002]   Size-selected $Ag_{n}$-clusters on unsupported graphene of a commercial Quantifoil sample have been investigated by surface and element-specific techniques such as transmission electron microscopy (TEM), spatially-resolved inner-shell X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). An agglomeration of the highly mobile clusters into nm-sized Ag-nanodots of 2–3 nm is observed. [...] Restricted: PDF PDF (PDFA);