Research Papers in Physics and Astronomy

 

Date of this Version

11-8-2004

Comments

Published in Journal of Applied Physics 97 (2005) 10A915. DOI: 10.1063/1.1851692 Copyright (c) 2005 American Institute of Physics. Used by permission.

Abstract

We present a detailed theoretical study of the magnetic ordering in heavy rare-earth compounds with a face-centered-cubic structure. In addition to the exchange interactions which are counted up to the third nearest neighbors, the effect of the dipolar interactions and magnetic anisotropic effect are also included in our model Hamiltonian. The interactions parameters are obtained from first-principles band-structure calculations by fitting the total energies of different magnetic configurations to the Heisenberg Model. Thus from utilizing the Monte Carlo simulations, we explained the formation of different magnetic structures in the rare-earth compounds.

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