Approximations made in evaluating the residual electrical dc resistivity of disordered alloys
- 15 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (4) , 2104-2109
- https://doi.org/10.1103/physrevb.50.2104
Abstract
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.Keywords
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