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Electrical Conductivity of Disordered Alloys with Strong Hybridization
Author(s) -
Elk K.,
Richter J.,
Christoph V.
Publication year - 1978
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.2220890224
Subject(s) - condensed matter physics , electrical resistivity and conductivity , conductivity , materials science , scattering , temperature coefficient , electron , fermi level , distribution function , phonon , chemistry , thermodynamics , physics , optics , quantum mechanics , composite material
The influence of a strong hybridization on the electrical conductivity σ of disordered substitutional alloys is considered. A remarkable temperature dependence of the conductivity can already arise due to the temperature dependence of the chemical potential and the Fermi distribution function. The temperature coefficient of the conductivity can have both signs in dependence on the band filling. For special values of the electron concentration the temperature dependence of σ may be fairly large and comparable with that one obtained by the electron‐phonon scattering.