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Theory of auger spectra from disordered alloys the effect of electron correlations in filled narrow bands

✍ Scribed by V. Drchal; J. Kudrnovský

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
563 KB
Volume
114
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

The theory of the intraatomic core‐valence‐valence Auger spectra from a substitutionally disordered alloy with an initially filled narrow band is formulated within the coherent‐potential approximation in the space of the two‐hole states. The constituent atoms are characterized by their atomic levels Δ and the contact pair interactions U between two electrons (Hubbard model). The exact solution to the problem is found for a particular case with randomness in the pair interactions only. Results of numerical analysis for a simple model based on the scaling‐factor approximation are given to illustrate the basic features of the theory.

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