【中文文摘】运用MonteCarlo模拟方法,通过分析系统自旋序参数与温度的变化关系了解纳米结构材料磁性的特征.计算模拟结果表明,磁性纳米材料具有比同等大小和平均密度的单晶低的居里温度,且在相变过程中往往会出现一些亚稳态.研究结果提供了一种解析金属纳米结构材料特性的重要方法.
【英文文摘】In this article, Monte Carlo simulation is applied to analyze the characteristics of twodimensional magnetic nanostructured materials. It is shown that nanostructured materials possess lower Curie temperature in comparison with crystalline materials with the same size and average densities. In addition, some mesoscopic states tend to appear in the transition processes of nanostructured materials. The result presented here gives an important approach to analyze nanostructured metal materials.国家自然科学基金纳米科技基础研究重大研究计划(90602039);; 中科院创新工程(K81045)资助项
