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Title: Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study

Abstract

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.

Authors:
 [1];  [1];  [1];  [2];  [2];  [3];  [4]
  1. Department of Physics and Astronomy and Laboratory for Surface Modification, Rutgers University, P.O. Box 849, Piscataway, New Jersey 08855-0849 (United States)
  2. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  3. J. Stefan Institute, University of Ljubljana, Jamova 39, 61000 Ljubljana, (Slovenia)
  4. National Institute for Materials and Chemistry, Tsukuba, (Japan)
Publication Date:
OSTI Identifier:
20215492
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 7; Other Information: PBD: 15 Feb 2000; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AUGER ELECTRON SPECTROSCOPY; RUTHENIUM; ELECTRONIC STRUCTURE; SYNCHROTRON RADIATION; NSLS; LINE WIDTHS; DIRAC APPROXIMATION; EXPERIMENTAL DATA; THEORETICAL DATA

Citation Formats

Gotter, R, Siu, W -K, Bartynski, R A, Hulbert, S L, Wu, Xilin, Zitnik, M, and Nozoye, H. Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study. United States: N. p., 2000. Web. doi:10.1103/PhysRevB.61.4373.
Gotter, R, Siu, W -K, Bartynski, R A, Hulbert, S L, Wu, Xilin, Zitnik, M, & Nozoye, H. Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study. United States. doi:10.1103/PhysRevB.61.4373.
Gotter, R, Siu, W -K, Bartynski, R A, Hulbert, S L, Wu, Xilin, Zitnik, M, and Nozoye, H. Tue . "Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study". United States. doi:10.1103/PhysRevB.61.4373.
@article{osti_20215492,
title = {Core-valence coupling in the Ru 4p photoexcitation/Auger decay process: Auger-photoelectron coincidence spectroscopy study},
author = {Gotter, R and Siu, W -K and Bartynski, R A and Hulbert, S L and Wu, Xilin and Zitnik, M and Nozoye, H},
abstractNote = {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.},
doi = {10.1103/PhysRevB.61.4373},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 7,
volume = 61,
place = {United States},
year = {2000},
month = {2}
}