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Galvanomagnetic Effects in Alloys in Quantizing Magnetic Fields
Author(s) -
Středa P.,
Smrčka L.
Publication year - 1975
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.2220700213
Subject(s) - coherent potential approximation , dispersion (optics) , yield (engineering) , range (aeronautics) , simple (philosophy) , tensor (intrinsic definition) , conductivity , field (mathematics) , zero (linguistics) , magnetic field , binary number , alloy , electron , binary alloy , condensed matter physics , kubo formula , mathematics , physics , quantum mechanics , materials science , thermodynamics , geometry , philosophy , linguistics , electronic structure , epistemology , arithmetic , pure mathematics , composite material
The one‐electron version of the Kubo formula is used to derive the components of the conductivity tensor for a simple model of a binary alloy characterized by the parabolic dispersion law and the zero range of potentials of scatterers. The configurational averaging is performed using the coherent potential approximation and therefore the final formulae apply for a broad range of alloy parameters. They are shown to yield proper high field and low field limits and to agree, for appropriate values of parameters, with the quasi‐classical approximation.