| 磁性薄膜热力学性质的变分累计展开研究 |
| |
| 引用本文： | 邓于.磁性薄膜热力学性质的变分累计展开研究[J].渝西学院学报(自然科学版),2005,4(1):18-21. |
| |
| 作者姓名： | 邓于 |
| |
| 作者单位： | 渝西学院物理学与电子信息工程系 重庆永川402168 |
| |
| 基金项目： | 重庆市教委科学技术研究项目资助 (批准号 :0 3 12 0 2 ) . |
| |
| 摘 要： | 采用变分累计展开 (简称VCE)方法研究了量子Heisenberg薄膜 ,计算了内能和比热的累积展开 从三级累积展开的结果 ,发现在临界约化温度处内能不连续 ,一级除外 ;而比热到三级都是不连续的 .
|
| 关 键 词： | 量子Heisenberg薄膜 变分累计展开 内能 比热 |
Variational Cumulant Expansion Study of Thermodynamical Character of Magnetic Thin Film |
| |
| Authors: | DENG Yu |
| |
| Abstract: | The variational cumulant expansion method is applied to the thermodyna-mical characters of quantum spin Heisenberg film. The internal energy and specif ic heat are calculated and displayed from the first to the third order. The inte rnal energy is not continueous expect the first order and the specific heat is n ot continueous until the third order in the critical reduced temperature. |
| |
| Keywords: | quantum Heisenberg film variational cumulant expansion internal e nergy specific heat |
| 本文献已被 CNKI 维普 等数据库收录！ |
