Auger-electron-photoion and photoion-photoion coincidence studies on ionic fragmentation of SF6 following the S L-shell excitation

Y. Sato, K. Ueda, H. Chiba, E. Shigemasa, A. Yagishita

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24 Citations (Scopus)

Abstract

Auger-electron-photoion coincidence study of SF6 excited by 196 eV photons shows that the dications having two holes in the outer-valence bands dissociate into various ionic fragments, while those having one hole in the outer-valence and one hole in the inner-valence (F 2s) bands mostly dissociate into atomic ionic fragments F+ and S+. Measurement of photoion-photoion coincidence efficiency curves in the S 2p threshold region reveals that not only the S 2p→t2g and eg excitation above the S 2p threshold but also the S 2p→a1g excitation below the S 2p threshold enhance the ion-pair formation, suggesting that a considerable part of the resonance-Auger-final states are subject to autoionization.

Original languageEnglish
Pages (from-to)475-480
Number of pages6
JournalChemical Physics Letters
Volume196
Issue number5
DOIs
Publication statusPublished - 1992 Aug 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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