Abstract
Recent developments in the multiple scattering theory of disordered substitutional alloys are reviewed. In view of experimental advances in alloy spectroscopy, the approaches involving the most realistic single particle Hamiltonians are emphasized. Specifically, we focus on the application of the average t-matrix approximation to the muffin tin model of the alloy. It is shown that the electronic structures of α phase CuZn and paramagnetic CuNi alloys can be characterized in terms of their respective complex energy bands. The interpretations of several experiments, bearing on the real as well as the imaginary parts of the complex bands, are discussed.
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In contrast to the CuZn system, the charge transfer effects for the CuNi calculations reported in this paper are assumed to be negligible. This assumption is consistent with the photoemission and Mössbauer studies on CuNi alloys
Details of the complex energy bands and density of states for CuNi alloys will be reported in a forthcoming paper
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Supported in part by Grant No. GH 35691 of the National Science Foundation.
Supported in part by Grant Nos. GH 33576 and GH 32774 of the National Science Foundation.
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Bansil, A., Schwartz, L. & Ehrenreich, H. The electronic structure of non-dilute alloys. Phys cond Matter 19, 391–403 (1975). https://doi.org/10.1007/BF01458890
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DOI: https://doi.org/10.1007/BF01458890