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Transition from bandlike to quasiatomic behavior in the N6,7O4,5O4,5 Auger spectra of iridium, platinum, and gold

Nyholm, Ralf LU ; Helenelund, Kurt; Johansson, Börje and Hörnström, Sven Erik (1986) In Physical Review B (Condensed Matter) 34(2). p.675-679
Abstract

The N6,7O4,5O4,5 Auger spectra of iridium, platinum, and gold have been measured. In conformity with the trends found in XVV spectra from the 3d- and 4d-series metals we find a change from bandlike toward quasiatomic behavior going from Ir to Au. The Auger spectrum from Ir is well described by a self-convolution of the valence band, thus showing a delocalized nature of the two-hole final state. The Auger spectra of Pt and Au are compared with calculated Auger profiles using the Cini-Sawatzky model. Especially for Au the spectrum is found to have strong contributions from atomiclike final states. Experimental values for the Coulomb interaction U are derived and compared with previous determinations for the 3d-, 4d-, and 5d-series... (More)

The N6,7O4,5O4,5 Auger spectra of iridium, platinum, and gold have been measured. In conformity with the trends found in XVV spectra from the 3d- and 4d-series metals we find a change from bandlike toward quasiatomic behavior going from Ir to Au. The Auger spectrum from Ir is well described by a self-convolution of the valence band, thus showing a delocalized nature of the two-hole final state. The Auger spectra of Pt and Au are compared with calculated Auger profiles using the Cini-Sawatzky model. Especially for Au the spectrum is found to have strong contributions from atomiclike final states. Experimental values for the Coulomb interaction U are derived and compared with previous determinations for the 3d-, 4d-, and 5d-series metals.

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author
publishing date
type
Contribution to journal
publication status
published
in
Physical Review B (Condensed Matter)
volume
34
issue
2
pages
5 pages
publisher
American Physical Society
external identifiers
  • scopus:25544453249
ISSN
0163-1829
DOI
10.1103/PhysRevB.34.675
language
English
LU publication?
no
id
60b0158b-3791-4d13-ae6f-76e2a92933ff
date added to LUP
2016-08-19 11:17:30
date last changed
2018-05-29 10:49:27
@article{60b0158b-3791-4d13-ae6f-76e2a92933ff,
  abstract     = {<p>The N6,7O4,5O4,5 Auger spectra of iridium, platinum, and gold have been measured. In conformity with the trends found in XVV spectra from the 3d- and 4d-series metals we find a change from bandlike toward quasiatomic behavior going from Ir to Au. The Auger spectrum from Ir is well described by a self-convolution of the valence band, thus showing a delocalized nature of the two-hole final state. The Auger spectra of Pt and Au are compared with calculated Auger profiles using the Cini-Sawatzky model. Especially for Au the spectrum is found to have strong contributions from atomiclike final states. Experimental values for the Coulomb interaction U are derived and compared with previous determinations for the 3d-, 4d-, and 5d-series metals.</p>},
  author       = {Nyholm, Ralf and Helenelund, Kurt and Johansson, Börje and Hörnström, Sven Erik},
  issn         = {0163-1829},
  language     = {eng},
  number       = {2},
  pages        = {675--679},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter)},
  title        = {Transition from bandlike to quasiatomic behavior in the N6,7O4,5O4,5 Auger spectra of iridium, platinum, and gold},
  url          = {http://dx.doi.org/10.1103/PhysRevB.34.675},
  volume       = {34},
  year         = {1986},
}