Electronic structure of disordered alloys-local environment effects

Kumar, V. ; Kumar, D. ; Joshi, S. K. (1976) Electronic structure of disordered alloys-local environment effects Journal of Physics C: Solid State Physics, 9 (14). pp. 2733-2737. ISSN 0022-3719

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Official URL: http://iopscience.iop.org/0022-3719/9/14/011

Related URL: http://dx.doi.org/10.1088/0022-3719/9/14/011

Abstract

The coherent potential approximation has been generalized to incorporate the effects of the local environment in the energy spectrum of disordered alloys described by the simple tight-binding approximation. The effective medium has been characterized by an effective local potential Sigma 1 and an effective hopping integral Sigma 2 between the nearest neighbours though the off-diagonal elements of the alloy Hamiltonian are not assumed to be disordered in the present calculation. The density of states has been calculated for a binary alloy AxB1-x having diamond lattice structure.

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Deposited On:12 Nov 2010 13:45
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