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The Onsager Cavity Field in FCC Alloys

  • S. Shallcross
  • B. L. Györffy

Abstract

We discuss phase diagrams and concentration variations near surfaces of fcc alloys on the basis of replacing the Weiss field, in the Bragg-Williams approximation, by the Onsager Cavity field. We argue that this scheme is as tractable as the Mean Field Approximation for complex problems and provides an adequate account of correlations even in frustrated systems.

Keywords

Correlation Energy Cluster Algebra Vicinal Surface High Temperature Expansion Frustrate System 
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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • S. Shallcross
    • 1
    • 2
  • B. L. Györffy
    • 1
  1. 1.H. H. Wills Physics LaboratoryUniversity of BristolBristolUK
  2. 2.Department of PhysicsUniversity of LiverpoolUK

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