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Alkali metal adsorption on Al(111)

Andersen, J. N. LU ; Lundgren, E. LU ; Nyholm, R. LU and Qvarford, M. (1993) In Surface Science 289(3). p.307-334
Abstract

The submonolayer adsorption of Na, K, Rb, and Cs on the Al(111) surface at 100 K and at room temperature is investigated by high resolution core level spectroscopy and low energy electron diffraction. It is found that the first alkali atoms on the surface adsorb at surface defects. At higher coverages, up to approximately one third of the maximum submonolayer coverage, alkali atoms adsorbed at defects coexist with a dispersed phase. At higher coverages island formation is found to occur for the majority of the systems. It is argued that all of the ordered structures formed at room temperature involve a disruption of the Al(111) surface in contrast to the situation at 100 K where the alkali atoms adsorb as adatoms. © 1993.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Surface Science
volume
289
issue
3
pages
28 pages
publisher
Elsevier
external identifiers
  • Scopus:0027610658
ISSN
0039-6028
DOI
10.1016/0039-6028(93)90663-5
language
English
LU publication?
yes
id
e31a42ee-ceca-4f64-9094-34f0417bc0cc
date added to LUP
2016-04-29 11:23:20
date last changed
2016-05-02 08:51:30
@misc{e31a42ee-ceca-4f64-9094-34f0417bc0cc,
  abstract     = {<p>The submonolayer adsorption of Na, K, Rb, and Cs on the Al(111) surface at 100 K and at room temperature is investigated by high resolution core level spectroscopy and low energy electron diffraction. It is found that the first alkali atoms on the surface adsorb at surface defects. At higher coverages, up to approximately one third of the maximum submonolayer coverage, alkali atoms adsorbed at defects coexist with a dispersed phase. At higher coverages island formation is found to occur for the majority of the systems. It is argued that all of the ordered structures formed at room temperature involve a disruption of the Al(111) surface in contrast to the situation at 100 K where the alkali atoms adsorb as adatoms. © 1993.</p>},
  author       = {Andersen, J. N. and Lundgren, E. and Nyholm, R. and Qvarford, M.},
  issn         = {0039-6028},
  language     = {eng},
  month        = {06},
  number       = {3},
  pages        = {307--334},
  publisher    = {ARRAY(0x966c6e0)},
  series       = {Surface Science},
  title        = {Alkali metal adsorption on Al(111)},
  url          = {http://dx.doi.org/10.1016/0039-6028(93)90663-5},
  volume       = {289},
  year         = {1993},
}