Monte Carlo simulation of critical properties of ultrathin anisotropic Heisenberg films

25th IUPAP Conference on Computational Physics

物理学;计算机科学

Medvedeva, M.A.^1 ; Prudnikov, P.V.^1

Department of Theoretical Physics, Omsk State University, Omsk 644077, Russia^1

关键词: Anisotropic Heisenberg models;    Critical properties;    Finite size scaling;    Magnetic behaviour;    Monte Carlo techniques;    Three dimensional systems;    Ultra thin magnetic films;    Universality class;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/510/1/012024/pdf
DOI  :  10.1088/1742-6596/510/1/012024

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The crossover from two-dimensional monolayer to three-dimensional system in ultrathin magnetic films is studied using a Monte Carlo technique. Ultrathin magnetic films is modeled as an anisotropic Heisenberg model. Finite-size scaling of the critical exponents as a function of film thickness is investigated. It was found that the magnetic behaviour changes from two-dimensional to three-dimensional universality class with increasing film thickness.