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Force constants at crystal surfaces

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
23
Issue
10
Identifiers
DOI: 10.1016/0038-1098(77)90490-2

Abstract

Abstract In the vicinity of surfaces the coupling constants for lattice vibrations are changed. There have been some attempts to calculate these changes, but apparently there are no numerical results. We propose a new method for the calculation of force constant changes near surfaces, starting with the electronic correlation function. A simple model is discussed which allows for some numerical results.

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