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arXiv · 0907.4173

Heisenberg antiferromagnets with exchange and cubic anisotropies

G. Bannasch·W. Selke
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Abstract

We study classical Heisenberg antiferromagnets with uniaxial exchange anisotropy and a cubic anisotropy term on simple cubic lattices in an external magnetic field using ground state considerations and extensive Monte Carlo simulations. In addition to the antiferromagnetic phase field--induced spin--flop and non--collinear, biconical phases may occur. Phase diagrams and critical as well as multicritical phenomena are discussed. Results are compared to previous findings.

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G. Bannasch, W. Selke. 2009-07-23. Heisenberg antiferromagnets with exchange and cubic anisotropies. https://doi.org/10.1088/1742-6596/200/2/022057

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