The possibility of obtaining a self-consistent solution for the single-particle Green's function in random binary alloys within the coherent potential approximation is considered. It is shown that the present approach leads to a first-principles approximate definition of the matrix elements of the single-particle Hamiltonian even in the tight-binding case, obtaining a physical ground for such an approach.
Single-particle Hamiltonian and self-consistency in random binary alloys
SACCHETTI, Francesco
1979
Abstract
The possibility of obtaining a self-consistent solution for the single-particle Green's function in random binary alloys within the coherent potential approximation is considered. It is shown that the present approach leads to a first-principles approximate definition of the matrix elements of the single-particle Hamiltonian even in the tight-binding case, obtaining a physical ground for such an approach.File in questo prodotto:
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