| s=1／2xxz反铁磁链的Spin—Peierls相变研究 |
| |
| 引用本文： | 江学范.s=1／2xxz反铁磁链的Spin—Peierls相变研究[J].常熟理工学院学报,2000,14(4):24-28. |
| |
| 作者姓名： | 江学范 |
| |
| 作者单位： | 常熟高等专科学校!常熟215500 |
| |
| 摘 要： | 应用玻色化的自洽微扰论方法，给出了ｓ＝１／２ｘｘｚ反铁磁链的Ｓｐｉｎ－Ｐｅｉｅｒｌｓ系统的基态能量和准粒子元激发能谱的解析近似式，了模型基态能量密度与基态准粒子激发能隙随晶格畸变大小的关系受各向异性作用参量的影响。
|
| 关 键 词： | 反铁磁铁相变 自洽微扰论 晶格畸变 |
Research on the phase transition in Spin-Peierls Systems with s=1/2xxz antiferromagnetic chain |
| |
| JIANG Xue_fan.Research on the phase transition in Spin-Peierls Systems with s=1/2xxz antiferromagnetic chain[J].Journal of Changshu Institute of Technology,2000,14(4):24-28. |
| |
| Authors: | JIANG Xue_fan |
| |
| Abstract: | The energy density of the ground state and excitation spectrum in Spin-Peierls Systems with s=12xxz antiferromagnetic chain are given by means of the bosonization self-consistent perturbation method.The change of the energy density of the ground state and quasipartical excited energy gap with the distortion and anti-isotropy of the model is discussed. |
| |
| Keywords: | s=12xxz model spin-peierls system antiferromagnetic chain phase transition |
| 本文献已被 CNKI 维普 等数据库收录！ |
