Cluster coherent-potential approximation in ternary random alloys
- 15 August 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (6) , 3798-3802
- https://doi.org/10.1103/physrevb.38.3798
Abstract
The augmented-space formalism introduced by one of us is used here to develop a self-consistent cluster coherent-potential approximation for the density of states for ternary random alloys. The approximation yields an averaged Green function which maintains its Herglotz properties for all energies and disorders. An application is made to a model for the ternary brass Cu-Ni-Zn.Keywords
This publication has 20 references indexed in Scilit:
- An augmented space formulation for the density of states of Cu-rich disordered CuNi alloysJournal of Physics F: Metal Physics, 1987
- Cluster generalisation of the KKR coherent potential methods for random metallic alloysJournal of Physics F: Metal Physics, 1987
- Electronic structure of disordered alloys I. Self-consistent cluster CPA incorporating off-diagonal disorder and short-range orderJournal of Physics C: Solid State Physics, 1982
- Self-consistent cluster theory for systems with off-diagonal disorderPhysical Review B, 1980
- Analytic approximation for substitutional alloysPhysical Review B, 1978
- Cluster approximations to response functions in disordered systems and macroscopic conservation lawsJournal of Physics C: Solid State Physics, 1976
- Coherent-potential approximation for the lattice vibrations of mixed diatomic systemsPhysical Review B, 1974
- Averaged density of states in disordered systemsJournal of Physics C: Solid State Physics, 1973
- Coherent-Potential Model of Substitutional Disordered AlloysPhysical Review B, 1967
- Vibrational Properties of Imperfect Crystals with Large Defect ConcentrationsPhysical Review B, 1967