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Coherent Potential Approximation of the Relationship between Short‐Range Order and the Position of the Fermi Level on the State Density Curves
Author(s) -
Batirev I. G.,
Katsnelson A. A.,
Kertész L.,
Szász A.
Publication year - 1980
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.2221000212
Subject(s) - position (finance) , range (aeronautics) , sign (mathematics) , order (exchange) , physics , density of states , state (computer science) , statistical physics , condensed matter physics , quantum mechanics , mathematics , mathematical analysis , materials science , finance , algorithm , economics , composite material
The density of electron states of binary alloys of transitional elements with short‐range order is found using the coherent potential approximation. On the base of these calculated values the contribution of the band structure energy to the configurational part of the total energy is determined and the equilibrium value of the short‐range order parameter on the first coordination sphere is evaluated. The order parameters obtained for most the considered systems agree in sign with the experimental data.