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Neutral Sulfur Atom Formation in Decay of Deep Core Holes in SF6

Travnikova, Oksana ; Trinter, Florian ; Agåker, Marcus LU ; Visentin, Giorgio ; Andersson, Joakim ; Kjellsson, Ludvig ; Ismail, Iyas ; Velasquez, Nicolas ; Koulentianos, Dimitris and Harder, Manuel , et al. (2025) In Physical Review Letters 134(6).
Abstract

Dissociation upon sulfur K-shell excitation or ionization of SF6 is studied by sulfur L-shell emission spectroscopy using synchrotron radiation and multiconfiguration Dirac-Hartree-Fock calculations of emission energies and transition rates. The decay path involves in particular Auger emission with the ejection of one or more electrons, leading to singly or multiply charged intermediate states. Nevertheless, the results of the study show that the observed photon emission at 151-152 eV following excitation at 2485-2489 eV originates dominantly from transitions in neutral sulfur. This clearly indicates that the central atom retains its electrons in a dissociation process where all fluorine atoms detach before the S 2p decay.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
134
issue
6
article number
063003
publisher
American Physical Society
external identifiers
  • pmid:40021139
  • scopus:85217807675
ISSN
0031-9007
DOI
10.1103/PhysRevLett.134.063003
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
id
700ad874-a824-43b0-acdc-0359552a72a7
date added to LUP
2025-06-23 14:15:25
date last changed
2025-07-07 14:51:16
@article{700ad874-a824-43b0-acdc-0359552a72a7,
  abstract     = {{<p>Dissociation upon sulfur K-shell excitation or ionization of SF6 is studied by sulfur L-shell emission spectroscopy using synchrotron radiation and multiconfiguration Dirac-Hartree-Fock calculations of emission energies and transition rates. The decay path involves in particular Auger emission with the ejection of one or more electrons, leading to singly or multiply charged intermediate states. Nevertheless, the results of the study show that the observed photon emission at 151-152 eV following excitation at 2485-2489 eV originates dominantly from transitions in neutral sulfur. This clearly indicates that the central atom retains its electrons in a dissociation process where all fluorine atoms detach before the S 2p decay.</p>}},
  author       = {{Travnikova, Oksana and Trinter, Florian and Agåker, Marcus and Visentin, Giorgio and Andersson, Joakim and Kjellsson, Ludvig and Ismail, Iyas and Velasquez, Nicolas and Koulentianos, Dimitris and Harder, Manuel and Yin, Zhong and Söderström, Johan and Marchenko, Tatiana and Guillemin, Renaud and McGinnis, O. Dennis and Ågren, Hans and Fritzsche, Stephan and Simon, Marc and Rubensson, Jan Erik and Nordgren, Joseph}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Neutral Sulfur Atom Formation in Decay of Deep Core Holes in SF6}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.134.063003}},
  doi          = {{10.1103/PhysRevLett.134.063003}},
  volume       = {{134}},
  year         = {{2025}},
}