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Coherent Potential Approximation of Short‐Range Order in Cluster Models of Alloys
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.2221010117
Subject(s) - orderliness , range (aeronautics) , cluster (spacecraft) , sign (mathematics) , cluster expansion , order (exchange) , short range order , coherent potential approximation , statistical physics , physics , chemistry , mathematics , thermodynamics , condensed matter physics , materials science , mathematical analysis , electronic structure , psychology , social psychology , finance , computer science , economics , composite material , programming language
In cluster approximation of coherent potential method the density of electron states of transitional element alloys with short‐range order is obtained. On the base of these calculations the configurational part of the total energy is determined and the equilibrium value calculated of the short‐range order parameter on the first co‐ordination sphere. The obtained parameter of orderliness in most of the considered systems agrees by sign with the experimental data and qualitatively they depend on the concentration on the right way.