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Unified behavior of alkali core-level binding-energy shifts induced by sp metals

Lundgren, E. LU ; Nyholm, R. LU ; Qvarford, M; Andersen, J. N. LU ; Heskett, D. and Christensen, S. V. (1997) In Physical Review B (Condensed Matter) 56(19). p.12560-12565
Abstract

Thin overlayers of Na, K. Rb, and Cs on different sp-metal substrates have been investigated using photo-electron spectroscopy. The alkali core levels show clearly resolved binding-energy shifts between the surface layer, the intermediate layer(s), and the interface layer. The magnitude of these shifts depends on sp metal and on alkali metal. The layer-resolved core-level binding-energy shifts are well reproduced by models based on a thermodynamical description. For three-layer alkali films the core-level binding energy of the intermediate layer is found to exhibit a small but significant shift between different sp-metal substrates. A simple relationship between the core-level binding-energy shift for the interface layer and the... (More)

Thin overlayers of Na, K. Rb, and Cs on different sp-metal substrates have been investigated using photo-electron spectroscopy. The alkali core levels show clearly resolved binding-energy shifts between the surface layer, the intermediate layer(s), and the interface layer. The magnitude of these shifts depends on sp metal and on alkali metal. The layer-resolved core-level binding-energy shifts are well reproduced by models based on a thermodynamical description. For three-layer alkali films the core-level binding energy of the intermediate layer is found to exhibit a small but significant shift between different sp-metal substrates. A simple relationship between the core-level binding-energy shift for the interface layer and the difference in rs value between the sp substrate and the adsorbate is shown to exist.

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author
organization
publishing date
type
Contribution to journal
publication status
published
in
Physical Review B (Condensed Matter)
volume
56
issue
19
pages
6 pages
publisher
American Physical Society
external identifiers
  • Scopus:1542629968
ISSN
0163-1829
language
English
LU publication?
yes
id
86b8a52e-231e-4a63-a2b4-dc9c4b0b8859
date added to LUP
2016-04-29 10:51:02
date last changed
2016-07-01 14:39:34
@misc{86b8a52e-231e-4a63-a2b4-dc9c4b0b8859,
  abstract     = {<p>Thin overlayers of Na, K. Rb, and Cs on different sp-metal substrates have been investigated using photo-electron spectroscopy. The alkali core levels show clearly resolved binding-energy shifts between the surface layer, the intermediate layer(s), and the interface layer. The magnitude of these shifts depends on sp metal and on alkali metal. The layer-resolved core-level binding-energy shifts are well reproduced by models based on a thermodynamical description. For three-layer alkali films the core-level binding energy of the intermediate layer is found to exhibit a small but significant shift between different sp-metal substrates. A simple relationship between the core-level binding-energy shift for the interface layer and the difference in r<sub>s</sub> value between the sp substrate and the adsorbate is shown to exist.</p>},
  author       = {Lundgren, E. and Nyholm, R. and Qvarford, M and Andersen, J. N. and Heskett, D. and Christensen, S. V.},
  issn         = {0163-1829},
  language     = {eng},
  month        = {11},
  number       = {19},
  pages        = {12560--12565},
  publisher    = {ARRAY(0x944e7f0)},
  series       = {Physical Review B (Condensed Matter)},
  title        = {Unified behavior of alkali core-level binding-energy shifts induced by sp metals},
  volume       = {56},
  year         = {1997},
}