发表机构
S. N. Bose National Centre for Basic Sciences; Presidency University（S.N. 玻色基础科学国立中心; 总统大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文通过蒙特卡罗模拟研究A-B-A型三层各向异性XY磁模型，发现其存在临界与补偿行为，补偿温度和临界温度随单格点各向异性增大而升高，并绘制了相图。
AI 中文摘要
本文考虑了A-B-A型三层各向异性（单格点）XY磁模型，其具有面内铁磁相互作用与面间反铁磁相互作用。采用Metropolis单自旋（随机选取）更新算法的蒙特卡罗模拟，研究了该三层各向异性XY系统的平衡性质。在给定的相互作用参数范围内，发现该系统呈现高温临界行为（亚晶格磁化强度与总磁化强度均消失）和低温补偿行为（即使亚晶格磁化强度非零，总磁化强度仍消失）。补偿温度与临界温度均随单格点各向异性的增大而升高，绘制了完整的相图，有限尺寸研究揭示了临界温度附近关联的增长。
英文摘要
The trilayered (A-B-A type) anisotropic (single site) XY magnetic model is considered with the intra-plane ferromagnetic and the inter-plane antiferromagnetic interactions. The equilibrium properties of such trilayered anisotropic XY system has been studied by Monte Carlo simulation with Metropolis single spin (randomly chosen) update algorithm. In a given range of interaction parameters, the system has been found to exhibit the high temperature {\it critical} (vanishing sublattice magnetisations and total magnetisation) and low temperature {\it compensation} (vanishing total magnetisation even for non-vanishing sublattice magnetisations) behaviours. The compensation temperature and the critical temperature both are found to increase with the increase of single site anisotropy. The comprehensive phase diagram is drawn. The finite size study reveals the growth of correlations near the critical temperature.
Comments15 Pages Latex and 8 Captioned figures
