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On the theory of phonon‐modulated electronic transport in off‐diagonal random alloys
Author(s) -
Kolley E.,
Kolley W.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220790135
Subject(s) - diagonal , equivalence (formal languages) , phonon , vertex (graph theory) , limit (mathematics) , tight binding , condensed matter physics , mathematics , physics , statistical physics , derivative (finance) , quantum mechanics , mathematical physics , mathematical analysis , electronic structure , combinatorics , pure mathematics , geometry , graph , financial economics , economics
The theory of the electric conductivity including electron‐phonon interaction is extended to off‐diagonal random alloys. The functional‐derivative technique is used to show the equivalence of the statically approximated tight‐binding model to a generalized stochastic model. Vertex corrections are evaluated by solving Bethe‐Salpeter‐type equations within a modified CPA for the additive limit.