ELECTRICAL CONDUCTIVITY OF LIQUID METALS AND AMORPHOUS SOLIDS-COHERENT-POTENTIAL APPROXIMATION | Zendy

Zhao-Qing Zhang | Zendy

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ELECTRICAL CONDUCTIVITY OF LIQUID METALS AND AMORPHOUS SOLIDS-COHERENT-POTENTIAL APPROXIMATION

Author(s) -

Zhao-Qing Zhang

Publication year - 1982

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.31.294

Subject(s) - coherent potential approximation , amorphous solid , electrical resistivity and conductivity , lattice (music) , conductivity , materials science , physics , condensed matter physics , thermodynamics , quantum mechanics , electronic structure , chemistry , organic chemistry , acoustics

A tight-binding model is used to obtain the electrical conductivity for liquid metals and amorphous solids within the framework of coherent-potential approximation. Following the method developed in our previous paper, the approximated equations for averaged two-particle Green's function of a lattice-gas model are obtained with short-range order for atoms included. The corresponding equations for liquid metals and amorphous solids are reduced by taking the limit of the lattice-gas model. Since the self-consistent equations so obtained contain all single-site diagrams, they have all the properties of the coherent-potential approximation.

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