Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study
- Department of Physics and Astronomy and Laboratory for Surface Modification, Rutgers University, P.O. Box 849, Piscataway, New Jersey 08855-0849 (United States)
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- J. Stefan Institute, University of Ljubljana, Jamova 39, 61000 Ljubljana, (Slovenia)
- National Institute for Materials and Chemistry, Tsukuba, (Japan)
The N{sub 23}VV Auger spectrum of Ru has been measured in coincidence with 4p{sub 1/2} and with 4p{sub 3/2} photoelectrons. Unlike other metals that exhibit bandlike Auger decays, we find that the two Auger spectra are not shifted by the difference in core level binding energies. A consistent description of these transitions and the core level line shape requires consideration of the relativistic multiplet splitting in the intermediate core hole state and two-valence-hole Auger final state. The results suggest that the large linewidth of the 4p levels is primarily due to multiplet splitting, and that an N{sub 2}(N{sub 3}N{sub 45})N{sub 45}N{sub 45} super-Coster-Kronig transition is only a minor decay channel. (c) 2000 The American Physical Society.
- OSTI ID:
- 20215492
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 61, Issue 7; Other Information: PBD: 15 Feb 2000; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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