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 language | English |
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Pages (from-to) | 287-291 |
Number of pages | 5 |
Journal | Journal of Electron Spectroscopy and Related Phenomena |
Volume | 137-140 |
Issue number | SPEC. ISS. |
DOIs | |
State | Published - 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