Home > Publications database > Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra
 
Preprint PUBDB-2023-01187
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Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra

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2023

[10.3204/PUBDB-2023-01187]  GO

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Report No.: arXiv:2211.17008

Abstract: 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.


Note: 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
Contributing Institute(s):
  1. FS-FLASH (FS-FLASH)
  2. The European XFEL Users (XFEL-User)
  3. SCS (XFEL_E2_SCS)
  4. FS-SXQM (FS-SXQM)
  5. FS-Photon Science (FS-PS)
  6. Strukturdynamik Chemischer Systeme (FS-SCS)
Research Program(s):
  1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
Experiment(s):
  1. SCS: Spectroscopy & Coherent Scattering (SASE3)
  2. XFEL Beamline SASE 3 (XFEL)

Appears in the scientific report 2023
Database coverage:
Creative Commons Attribution-ShareAlike CC BY-SA 4.0 ; OpenAccess ; Published
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Private Collections > >DESY > >FS > FS-SXQM
Private Collections > >DESY > >FS > FS-SCS
Private Collections > >DESY > >FS > FS-PS
Private Collections > >XFEL.EU > XFEL_E2_SCS
Private Collections > >XFEL.EU > XFEL-User
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Electron Population Dynamics in Resonant Non-Linear X-ray Absorption in Nickel at a Free-Electron Laser
Structural dynamics 10(5), 054501 () [10.1063/4.0000206] special issue: "The advent of ultrafast X-ray absorption spectroscopy"  GO OpenAccess  Download fulltext Files  Download fulltextFulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

 Record created 2023-03-13, last modified 2023-08-06
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