Multicritical points in the three-dimensional XXZ antiferromagnet with single-ion anisotropy
Statistical Mechanics
2015-06-12 v1
Abstract
The classical Heisenberg antiferromagnet with uniaxial exchange anisotropy, the XXZ model, and competing planar single-ion anisotropy in a magnetic field on a simple cubic lattice is studied with the help of extensive Monte Carlo simulations. The biconical (supersolid) phase, bordering the antiferromagnetic and spin-flop phases, is found to become thermally unstable well below the onset of the disordered, paramagnetic phase, leading to interesting multicritical points.
Keywords
Cite
@article{arxiv.1211.1052,
title = {Multicritical points in the three-dimensional XXZ antiferromagnet with single-ion anisotropy},
author = {Walter Selke},
journal= {arXiv preprint arXiv:1211.1052},
year = {2015}
}