Fluorescence-mediated postcollision interaction in x-ray photoionization of the Xe <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>K</mml:mi></mml:math> edge
Postcollision interaction (PCI) in near-threshold photoionization of the $K$ shell of atomic Xe is investigated with hard-x-ray synchrotron radiation. Applying Auger electron spectroscopy, line-shape distortion is monitored in the $K\text{\ensuremath{-}}{L}_{2}\ensuremath{\rightarrow}{L}_{2}{M}_{4,5}{M}_{4,5}$ decay channel, where the initial $K\text{\ensuremath{-}}{L}_{2}$ ($K{\ensuremath{\alpha}}_{2}$) x-ray-emission step mediates the emission of the two continuum electrons. The $K$-edge result is compared to similar data obtained on direct ${L}_{2}{M}_{4,5}{M}_{4,5}$ decay at the ${L}_{2}$ edge without x-ray-emission. It is found that the evolution of the PCI shift with excess photon energy is very similar at both edges, but a subtle decrease in the PCI shift is observable at the $K$ edge due to the effect of the ultrafast x-ray emission step delaying the PCI energy exchange by a few attoseconds.
Authors
- Dimitris Koulentianos (ORCID: https://orcid.org/0000-0002-5499-4659)
- Shuai Li (ORCID: https://orcid.org/0000-0002-2248-2077)
- R. Püttner (ORCID: https://orcid.org/0000-0002-8761-6873)
- M. Simon (ORCID: https://orcid.org/0000-0002-2525-5435)
- Gilles Doumy (ORCID: https://orcid.org/0000-0001-8672-4138)
- R. Guillemin (ORCID: https://orcid.org/0000-0001-9239-7372)
- Donald A. Walko
- Linda Young (ORCID: https://orcid.org/0000-0002-2251-039X)
- D. Céolin (ORCID: https://orcid.org/0000-0002-5660-137X)
- Iyas Ismail (ORCID: https://orcid.org/0000-0003-2007-6419)
- T. Marchenko (ORCID: https://orcid.org/0000-0002-9015-3339)
- Eetu Pelimanni (ORCID: https://orcid.org/0000-0002-4550-6430)
- Oksana Travnikova (ORCID: https://orcid.org/0000-0001-9504-3692)
- A. Verma (ORCID: https://orcid.org/0000-0002-1169-6459)
- S. H. Southworth (ORCID: https://orcid.org/0000-0002-7745-7629)
- Phay J. Ho (ORCID: https://orcid.org/0000-0001-5214-2180)
- Nicolas Velasquez (ORCID: https://orcid.org/0000-0002-2787-5347)
- D. Peng
Institutions
- Argonne National Laboratory (US)
- Universität Hamburg (DE)
- Synchrotron soleil (FR)
- Sorbonne Université (FR)
- University of Chicago (US)
- Laboratoire de Chimie Physique - Matière et Rayonnement (FR)
- Center for Free-Electron Laser Science (DE)
- Advanced Photonix (United States) (US)
- Advanced Photon Source
- Laboratoire Médiations (FR)
- Freie Universität Berlin (DE)
- European X-Ray Free-Electron Laser (DE)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2024-08-30
- DOI
- https://doi.org/10.1103/physreva.110.023117
- Citations
- 1
- Primary Topic
- X-ray Spectroscopy and Fluorescence Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.61
Funders
- U.S. Department of Energy
- Argonne National Laboratory