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Abstract : It is shown that tree paths may be ignored when applying the C.P.A. to the determination of the electronic density of states in a binary alloy corresponding to Anderson-s model, and that a C.P.A. condition only involving non-retracing paths may be derived. This may simplify the determination of the C.P.A. density of states when a moment technique is used.

Keywords : alloys Anderson model CPA calculations electronic density of states tight binding calculations





Autor: O. Betbeder-Matibet M. Hulin N. Pottier

Fuente: https://hal.archives-ouvertes.fr/



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