叶晴莹;陈水源;李铭领;吴洋洋;黄志高;

• 1:福建师范大学物理与能源学院

摘要(Abstract)：

利用Monte-Carlo方法模拟了不同长、短轴以及不同内径的椭圆钴纳米环的磁特性.模拟结果表明:对于偏心率较小的椭圆钴纳米环,当内径不大时,系统的磁滞回线与圆形钴纳米环的磁滞回线相当类似;当内径较大时,系统的磁滞回线与圆形钴纳米环的结果有很大的不同.当椭圆的偏心率增大时,由于存在较多的过渡状态,系统磁滞回线的台阶变得更为平滑,这可以通过系统的磁化过程进行解释.当椭圆的偏心率较大时,由于出现了大量的过渡状态,系统的磁滞回线呈现的台阶变得更加平滑.

关键词(KeyWords)： 椭圆钴纳米环;Monte-Carlo方法;偏心率;内径;磁特性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(11004039;11004031);; 福建省自然科学基金资助项目(2010J01277;2012J01003);; 福建省教育厅资助项目(JA10086;JB11024);; 福建省大学生创新实验计划项目(Fjnu2011-004;BKL2011-010;cxxl-078)

作者(Authors): 叶晴莹;陈水源;李铭领;吴洋洋;黄志高;

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