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Spin Fluctuations in Alloys with Random Transfer
Author(s) -
Fehske H.
Publication year - 1983
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.2221200218
Subject(s) - condensed matter physics , coherent potential approximation , spin (aerodynamics) , spin density , vertex (graph theory) , paramagnetism , binary number , physics , statistical physics , probability density function , functional theory , density functional theory , quantum mechanics , mathematics , electronic structure , thermodynamics , graph , statistics , arithmetic , discrete mathematics
The local spin fluctuation theory proposed by Hasegawa is extended to binary alloys with random transfer of the additive type. Spin fluctuations and alloy disorder are treated within an extended coherent potential approximation (ODCPA). The dc conductivity σ, including CPA vertex corrections, is derived via density‐density susceptibility from the functional integral scheme. In the paramagnetic region model calculations are presented for the averaged local moment, σ, density of states, and the distribution function of spin fluctuations.