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Relation of Long‐Range Interatomic Interactions to the Sign and Type of Short‐Range Ordering in Alloys
Author(s) -
Katsnelson A. A.
Publication year - 1972
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.2220510204
Subject(s) - sign (mathematics) , range (aeronautics) , short range order , condensed matter physics , type (biology) , order (exchange) , interatomic potential , electron , materials science , physics , quantum mechanics , mathematics , molecular dynamics , mathematical analysis , ecology , finance , economics , composite material , biology
The relation of long‐range interatomic interactions to the sign and type of short‐range order is investigated in alloys. It is found, that sign and type of short‐range order are determined by the spectrum of the ordering energy, which may be obtained from the dependence of the interatomic interaction potential on the distance. It is shown in the approximation of spherical Fermi surfaces, that an electron concentration of n = 1 causes a short‐range ordering of Cu 3 Au‐type. Both, increasing and decreasing of n give rise to a change of the type and then of the sign of the short‐range order.