| 非晶磁性材料磁相变的Monte Carlo模拟 |
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| 引用本文： | 冯倩,程文耿,黄志高.非晶磁性材料磁相变的Monte Carlo模拟[J].福建师范大学学报(自然科学版),2011,27(2):48-51. |
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| 作者姓名： | 冯倩 程文耿 黄志高 |
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| 作者单位： | 福建师范大学物理与光电信息科技学院,福建,福州,350108 |
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| 基金项目： | 福建省自然科学基金项目资助 |
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| 摘 要： | 利用Monte Carlo方法研究了基于Heisenberg模型的非晶磁性材料的磁相变.考虑到系统的非晶结构,采用Monte Carlo随机发生器使交换耦合常数J和配位数Z具有一定的涨落,遵从一定的概率分布.模拟结果表明,交换耦合和配位数的涨落对系统的相变起重要的影响作用.系统的相变温度与平均交换耦合常数及平均配位数成...
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| 关 键 词： | 非晶磁性材料 Monte Carlo模拟 磁相变 |
Monte Carlo Simulation of Magnetic Phase of Amorphous Magnets |
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| FENG Qian,SHENG Wen-geng,HUANG Zhi-gao.Monte Carlo Simulation of Magnetic Phase of Amorphous Magnets[J].Journal of Fujian Teachers University(Natural Science),2011,27(2):48-51. |
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| Authors: | FENG Qian SHENG Wen-geng HUANG Zhi-gao |
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| Institution: | FENG Qian,SHENG Wen-geng,HUANG Zhi-gao(School of Physics and OptoElectronics Technology,Fujian Normal University,Fuzhou 350108,China) |
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| Abstract: | Monte Carlo simulation studies are performed to examine the magnetic phase diagrams of a amorphous system modeled with a Heisenberg Hamiltonian.By use of Monte Carlo random generator,the exchange interaction J and the coordination Z gain a certain probability distribution.It is found that the influence of structure and interaction fluctuations on may severely affect the phase diagrams.The critical temperature Tc is nearly proportional to the mean coordination and the mean interaction Jm,and decrease with th... |
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| Keywords: | amorphous magnet Monte Carlo method magnetic phase |
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