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1991 | 80 | 5 | 631-648
Article title

Two-Site Correlations in a Surface Layer Adsorbed on the Crystal

Content
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Languages of publication
EN
Abstracts
EN
The incohorent scattering of electrons by layer adsorbed at a single crystal surface is determined by the Fourier transform of correlation functions of elements forming this layer. The model of the description of atoms or molecules adsorbed on the surface is formulated by the occupation operators which are represented by the pseudospin operators. The calculations of the correlation functions are performed by means of methods which consider a given pair of elements embedded in the effective field of remaining elements of the system while the interaction between the elements of the pair are taken in its exact form. Two approaches are presented here, i.e. the cumulant average and constant coupling approximations, and the case of binary chemisorption is considered in detail. The problem of the correlation symmetry is also discussed.
Keywords
EN
Publisher

Year
Volume
80
Issue
5
Pages
631-648
Physical description
Dates
published
1991-11
received
1991-03-21
Contributors
author
  • Institute of Physics, Łódź University, 90-236 Łódź, Poland
author
  • Institute of Physics, Łódź University, 90-236 Łódź, Poland
author
  • Laboratoire de Physique des Interfaces, Bgt. 203, Université Claude Bernard, F-69622 Villeurbanne Cedex, France
author
  • Laboratoire de Physique des Interfaces, Bgt. 203, Université Claude Bernard, F-69622 Villeurbanne Cedex, France
author
  • Laboratoire de Physique des Interfaces, Bgt. 203, Université Claude Bernard, F-69622 Villeurbanne Cedex, France
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv80z501kz
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