Monte-Carlo study of the reorientation transition in Heisenberg models with dipole interactions

Abstract

We simulated the classical two-dimensional anisotropic Heisenberg model with full long range dipole interaction with an algorithm especially designed for long range models. The results show strong evidence for a first order reorientation transition at a temperature $T_R<T_C$ for appropriate parameters of the model Hamiltonian.

2 pages with 2 figures PostScript (120kB), to be published in J. Magn. Magn. Mater

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