Sub-natural linewidth Auger electron spectroscopy of the 2s hole decay in H2S

Y. Hikosaka*, P. Lablanquie, F. Penent, J. G. Lambourne, R. I. Hall, T. Aoto, K. Ito

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Threshold photoelectron-Auger electron coincidence spectroscopy has been applied to the sulphur 2s region of H2S, where the Auger electron spectrum is measured in coincidence with threshold electrons. Formation of H2S++[(S2p)-1(V)-1] states via the L1L2,3V Coster-Kronig transitions is observed above the S2s photoionization threshold. Even below threshold, formation of these H 2S++ states is seen and is due to direct double ionization. A sub-natural linewidth regime is achieved with this coincidence method and three structures resulting from overlaps of the H2S ++[(S2p)-1(V)-1] states appear in the spectra. The three structures probably correspond to H2S++ states with the 2b1, 5a1 and 2b2 holes.

Original languageEnglish
Pages (from-to)287-291
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume137-140
Issue numberSPEC. ISS.
DOIs
StatePublished - 2004/07

Keywords

  • Auger transition
  • Coincidence spectroscopy
  • HS
  • Sub-natural linewidth
  • Sulfur 2s hole
  • Threshold electron

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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