Finite-temperature behavior of anisotropic two-sublattice magnets

Authors

• Ralph Skomski, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

June 1998

Comments

Published by Am Inst of Physics. J. Appl. Phys. 83 (1998) 6724-6726. Copyright 1998. Permission to use. http://www.aip.org/.

Abstract

The finite-temperature magnetism of rare-earth transition-metal intermetallics is investigated by extending the n-component vector spin model to two-sublattice magnets. Mean-field analysis shows that the influence of the rare-earth anisotropy on the mean-field Curie temperature is much smaller than expected from the low-temperature rare-earth anisotropy. The use of ultraspherical polynomials yields a generalization of the famous m (m+1)/2 power-law exponent to m (m+n-2)/( n-1).