Analytical description of temperature dependence of a position in reciprocal space of the short-range order Fourier transform's maximum in alloys

Within the framework of the recently developed (Chepulskii, R. V. and Bugaev, V. N., Solid Stare Commun., 1998, 105, 615) high-accuracy analytical approximation, the possibility of a displacement of the position of the Fourier transform's, maximum of the short-range order parameters from one high-symmetry point of the reciprocal space to another under the temperature variation, is demonstrated for two model alloys. The obtained data are in excellent agreement with the results of both cluster variation and Monte Carlo simulation methods. (C) 1998 Elsevier Science Ltd. All rights reserved.