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Alkali core-level binding-energy shifts in alkali/4d-metal interface systems

Lundgren, E. LU ; Qvarford, M.; Nyholm, R. LU ; Andersen, J. N. LU and Heskett, D. (1994) In Physical Review B (Condensed Matter) 50(7). p.4711-4717
Abstract

Photoemission from different alkali core levels (Na 2p, K 3p, Rb 4p, and Cs 4d) has been studied for thin alkali films deposited on four different 4d metal surfaces: Mo(110), Rh(111), Rh(110), and Pd(100). Alkali atoms at the interface, the bulk, and at the surface of the adsorbed alkali film are found to have different core-level binding energies. It is found that the core-level binding-energy shifts of the alkali metals induced by the 4d-metal substrate increase with increasing atomic number of the alkali metal and with increasing atomic number of the 4d metal. Thermodynamical quantities such as interface segregation energies and adhesion energies are deduced from the layer-resolved shifts. Estimates of the experimental binding-energy... (More)

Photoemission from different alkali core levels (Na 2p, K 3p, Rb 4p, and Cs 4d) has been studied for thin alkali films deposited on four different 4d metal surfaces: Mo(110), Rh(111), Rh(110), and Pd(100). Alkali atoms at the interface, the bulk, and at the surface of the adsorbed alkali film are found to have different core-level binding energies. It is found that the core-level binding-energy shifts of the alkali metals induced by the 4d-metal substrate increase with increasing atomic number of the alkali metal and with increasing atomic number of the 4d metal. Thermodynamical quantities such as interface segregation energies and adhesion energies are deduced from the layer-resolved shifts. Estimates of the experimental binding-energy shifts are given using semiempirical calculations, and certain complications in doing that are discussed. © 1994 The American Physical Society.

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author
organization
publishing date
type
Contribution to journal
publication status
published
in
Physical Review B (Condensed Matter)
volume
50
issue
7
pages
7 pages
publisher
American Physical Society
external identifiers
  • Scopus:0039586746
ISSN
0163-1829
DOI
10.1103/PhysRevB.50.4711
language
English
LU publication?
yes
id
74e8afe6-dba6-4851-bfe2-a9c44904f45e
date added to LUP
2016-04-29 11:07:48
date last changed
2016-05-21 11:58:17
@misc{74e8afe6-dba6-4851-bfe2-a9c44904f45e,
  abstract     = {<p>Photoemission from different alkali core levels (Na 2p, K 3p, Rb 4p, and Cs 4d) has been studied for thin alkali films deposited on four different 4d metal surfaces: Mo(110), Rh(111), Rh(110), and Pd(100). Alkali atoms at the interface, the bulk, and at the surface of the adsorbed alkali film are found to have different core-level binding energies. It is found that the core-level binding-energy shifts of the alkali metals induced by the 4d-metal substrate increase with increasing atomic number of the alkali metal and with increasing atomic number of the 4d metal. Thermodynamical quantities such as interface segregation energies and adhesion energies are deduced from the layer-resolved shifts. Estimates of the experimental binding-energy shifts are given using semiempirical calculations, and certain complications in doing that are discussed. © 1994 The American Physical Society.</p>},
  author       = {Lundgren, E. and Qvarford, M. and Nyholm, R. and Andersen, J. N. and Heskett, D.},
  issn         = {0163-1829},
  language     = {eng},
  number       = {7},
  pages        = {4711--4717},
  publisher    = {ARRAY(0x6c438b8)},
  series       = {Physical Review B (Condensed Matter)},
  title        = {Alkali core-level binding-energy shifts in alkali/4d-metal interface systems},
  url          = {http://dx.doi.org/10.1103/PhysRevB.50.4711},
  volume       = {50},
  year         = {1994},
}