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Core-level satellite excitations of K/Al(100) and K/Al(111)

Heskett, D. ; Lundgren, E. LU ; Nyholm, R. LU and Andersen, J. N. LU (1995) In Physical Review B (Condensed Matter) 52(16). p.12366-12371
Abstract

Alkali-metal-induced satellite peaks associated with the K 3p and Al 2p core levels have been measured with photoemission for K/Al(111) and K/Al(100) under both low- and room-temperature preparation conditions. For low-temperature deposition we observedddd loss peaks in good agreement with electron-energy-loss spectroscopy studies of analogous systems which we assign to the excitation of collective plasmonlike modes in the alkali-metal overlayer. For room-temperature preparation conditions, we observed significant changes in the satellite loss structure which we attribute to a decrease or loss of metallic behavior in the alkali-metal layer. We account for some of our results as a change in bonding configuration of the K atoms from... (More)

Alkali-metal-induced satellite peaks associated with the K 3p and Al 2p core levels have been measured with photoemission for K/Al(111) and K/Al(100) under both low- and room-temperature preparation conditions. For low-temperature deposition we observedddd loss peaks in good agreement with electron-energy-loss spectroscopy studies of analogous systems which we assign to the excitation of collective plasmonlike modes in the alkali-metal overlayer. For room-temperature preparation conditions, we observed significant changes in the satellite loss structure which we attribute to a decrease or loss of metallic behavior in the alkali-metal layer. We account for some of our results as a change in bonding configuration of the K atoms from on-top-of surface to substitutional adsorption for low versus room-temperature preparations.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
in
Physical Review B (Condensed Matter)
volume
52
issue
16
pages
6 pages
publisher
American Physical Society
external identifiers
  • scopus:0000021069
ISSN
0163-1829
DOI
10.1103/PhysRevB.52.12366
language
English
LU publication?
yes
id
cbff69a7-b59c-4c2b-9461-c9edfbfb06a8
date added to LUP
2016-04-29 10:59:22
date last changed
2021-01-03 11:05:09
@article{cbff69a7-b59c-4c2b-9461-c9edfbfb06a8,
  abstract     = {{<p>Alkali-metal-induced satellite peaks associated with the K 3p and Al 2p core levels have been measured with photoemission for K/Al(111) and K/Al(100) under both low- and room-temperature preparation conditions. For low-temperature deposition we observedddd loss peaks in good agreement with electron-energy-loss spectroscopy studies of analogous systems which we assign to the excitation of collective plasmonlike modes in the alkali-metal overlayer. For room-temperature preparation conditions, we observed significant changes in the satellite loss structure which we attribute to a decrease or loss of metallic behavior in the alkali-metal layer. We account for some of our results as a change in bonding configuration of the K atoms from on-top-of surface to substitutional adsorption for low versus room-temperature preparations.</p>}},
  author       = {{Heskett, D. and Lundgren, E. and Nyholm, R. and Andersen, J. N.}},
  issn         = {{0163-1829}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{12366--12371}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B (Condensed Matter)}},
  title        = {{Core-level satellite excitations of K/Al(100) and K/Al(111)}},
  url          = {{http://dx.doi.org/10.1103/PhysRevB.52.12366}},
  doi          = {{10.1103/PhysRevB.52.12366}},
  volume       = {{52}},
  year         = {{1995}},
}