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Approximations made evaluating the residual electrical dc resistivity of disordered alloys

: Banhart, J.; Ebert, H.; Voitländer, J.; Weinberger, P.


Physical Review. B 50 (1994), No.4, pp.2104-2109
ISSN: 0163-1829
ISSN: 1098-0121
ISSN: 0556-2805
Journal Article
Fraunhofer IFAM ()
Berechnung; Legierung; Restwiderstand

The residual electrical dc resistivity of the transition-metal-alloy system Cu-Pt is evaluated by making use of the relativistic version of the Korringa-Kohn-Rostoker-coherent potential approximation and the one-electron Kubo-Greenwood formula for disordered systems. Starting from the results of a previous calculation the influence of truncation of the angular momentum expansion, the effects of self-consistency of the alloy potential, the importance of vertex corrections, and the difference between the nonrelativistic and the relativistic current operator are examined.