Heisenberg antiferromagnets with uniaxial exchange and cubic anisotropies in a field
arXiv:0807.1019 · doi:10.1140/epjb/e2009-00171-x
Abstract
Classical Heisenberg antiferromagnets with uniaxial exchange anisotropy and a cubic anisotropy term in a field on simple cubic lattices are studied with the help of ground state considerations and extensive Monte Carlo simulations. Especially, we analyze the role of non-collinear structures of biconical type occurring in addition to the well-known antiferromagnetic and spin-flop structures. Pertinent phase diagrams are determined, and compared to previous findings.
14 pages, 8 figures