Monte Carlo simulation of the effects of higher order anisotropy on the spin reorientation transition in the two dimensional Heisenberg model with long range interactions

Abstract

The strength of perpendicular anisotropy is known to drive the spin reorientation in thin magnetic films. Here we consider the effect different order anisotropies have on two phase transitions; the spin reorientation transition and the orientational order transition. We find that the relative magnitude of different order anisotropies can significantly enhance or suppress the degree to which the system reorients. Specifically Monte Carlo simulations reveal significant changes in the cone angle and planar magnetization. In order to facilitate rapid computation we have developed a stream processing technique, suitable for use on GPU systems, for computing the transition probabilities in two dimensional systems with dipole interactions.

13 pages, 19 figures

References in corpus (5)

• Multi-GPU Accelerated Multi-Spin Monte Carlo Simulations of the 2D Ising Model
• Simulating spin models on GPU
• The Spin Reorientation Transition and Phase Diagram of Ultrathin Ferromagnetic Films
• Quasi-long-range ordering in a finite-size 2D Heisenberg model
• Dynamics of topological defects in a two-dimensional magnetic domain stripe pattern

Cited by in corpus (4)

• Dimensional effects in ultrathin magnetic films
• Computation of magnetization, exchange stiffness, anisotropy, and susceptibilities in large-scale systems using GPU-accelerated atomistic parallel Monte Carlo algorithms
• Exact diagonalization of quantum lattice models on coprocessors
• Micromagnetic Monte Carlo method with variable magnetization length based on the Landau-Lifshitz-Bloch equation for computation of large-scale thermodynamic equilibrium states