Heisenberg antiferromagnets with uniaxial exchange and cubic anisotropies in a field

2008/07/07 by G. Bannasch, W. Selke
Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Antiferromagnetism #Exchange bias #Field (mathematics) #Ground state #Heisenberg model #Monte Carlo method #Physics of Superconductivity and Magnetism #Theoretical and Computational Physics #cond-mat.stat-mech

paper · pdf · doi:10.1140/epjb/e2009-00171-x

14 pages, 8 figures

arxiv created 2008/07/07 · openalex publication_date 2009/05/12 · arxiv updated 2015/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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.

Citations

• Two-dimensional anisotropic Heisenberg antiferromagnet in a magnetic field
• Multicritical phenomena inO(n1)⊕O(n2)-symmetric theories
• Critical Binder cumulant of two-dimensional Ising models
• Biconical structures in two-dimensional anisotropic Heisenberg antiferromagnets
• Propriétés magnétiques de l'état métallique et énergie d'interaction entre atomes magnétiques