Disordered alloys with a Bethe lattice structure: a study of a new mean-field approximation
- 22 November 1987
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 20 (33) , 5501-5515
- https://doi.org/10.1088/0022-3719/20/33/008
Abstract
The authors study a new mean-field method to calculate the densities of states in random alloys with a Bethe lattice structure. The formalism includes both diagonal and off-diagonal disorder as well as short-range order. Results in one-dimension are compared with exact spectra. The method is compared with other mean-field approximations. This approach is shown to exhibit the correct behaviour around certain limits.Keywords
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