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M4,5N4,5N4,5 Auger decay spectra of the resonantly excited 3d94f configuration of xenonlike ions in solids

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Author

  • R. Ruus
  • A. Kikas
  • A. Maiste
  • E. Nõmmiste
  • A. Saar
  • M. Elango
  • J. F. Van Acker
  • M. Qvarford
  • J. N. Andersen
  • R. Nyholm
  • I. Martinson
Show all

Summary, in English

The synchrotron-radiation-induced Auger and photoelectron spectra of the xenonlike ions I- (in CsI), Cs+ (in CsI), Ba2+ (in BaF2), and La3+ (in LaF3) have been measured in the vicinity of the M4,5 absorption edges of these ions. It is shown that the spectra of La and Ba measured at 3d10→3d94f resonances exhibit a very intense 4f-spectator structure which changes its energy and intensity with the energy of the exciting photons. Calculation of the Auger decay of the 3d-14f configuration shows that this structure is due to transitions to the 4d-24f+4p-1 final ionic configuration, the high-energy part of which overlaps the 4d-2 continuum. In the case of Ba this structure coexists with the normal Auger structure which appears as a result of the M4M5N6,7 Coster-Kronig transitions. The spectra of I- contain only the normal M4,5N4,5N4,5 Auger structure related to the 3d-1→4d-2 transitions. The spectra of Cs+ are similar to those of I- with a small admixture of the 4f-spectator-like structure.

Publishing year

1994

Language

English

Pages

14836-14844

Publication/Series

Physical Review B (Condensed Matter)

Volume

49

Issue

21

Document type

Journal article

Publisher

American Physical Society

Status

Published

ISBN/ISSN/Other

  • ISSN: 0163-1829