TY  - EJOUR
AU  - Engel, Robin Y.
AU  - Alexander, Oliver
AU  - Atak, Kaan
AU  - Bovensiepen, Uwe
AU  - Buck, Jens
AU  - Carley, Robert
AU  - Cascella, Michele
AU  - Chardonnet, Valentin
AU  - Chiuzbaian, Gheorghe Sorin
AU  - David, Christian
AU  - Döring, Florian
AU  - Eschenlohr, Andrea
AU  - Gerasimova, Natalia
AU  - de Groot, Frank
AU  - Guyader, Loïc Le
AU  - Humphries, Oliver S.
AU  - Izquierdo, Manuel
AU  - Jal, Emmanuelle
AU  - Kubec, Adam
AU  - Laarmann, Tim
AU  - Lambert, Charles-Henri
AU  - Lüning, Jan
AU  - Marangos, Jonathan P.
AU  - Mercadier, Laurent
AU  - Mercurio, Giuseppe
AU  - Miedema, Piter S.
AU  - Ollefs, Katharina
AU  - Pfau, Bastian
AU  - Rösner, Benedikt
AU  - Rossnagel, Kai
AU  - Rothenbach, Nico
AU  - Scherz, Andreas
AU  - Schlappa, Justine
AU  - Scholz, Markus
AU  - Schunck, Jan O.
AU  - Setoodehnia, Kiana
AU  - Stamm, Christian
AU  - Techert, Simone
AU  - Vinko, Sam M.
AU  - Wende, Heiko
AU  - Yaroslavtsev, Alexander A.
AU  - Yin, Zhong
AU  - Beye, Martin
TI  - Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra
IS  - arXiv:2211.17008
M1  - PUBDB-2023-01187
M1  - arXiv:2211.17008
PY  - 2023
N1  - The main text contains 5 pages and 4 figures, the total length including supplement is 14 pages, 7 figures and one table. See also the simultaneously submitted paper about the rate model
AB  - The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L3-edge absorption spectra of metallic nickel thin films with fluences entering a regime where several X-ray photons are incident per absorption cross-section. Main features of the observed non-linear spectral changes are described with a predictive rate model for electron population dynamics during the pulse, utilizing a fixed density of states and tabulated ground-state properties.
LB  - PUB:(DE-HGF)25
DO  - DOI:10.3204/PUBDB-2023-01187
UR  - https://bib-pubdb1.desy.de/record/580281
ER  -