| 严格对角化方法对S=1/2自旋阶梯模型的研究 |
| |
| 引用本文： | 曹欣伟.严格对角化方法对S=1/2自旋阶梯模型的研究[J].西安文理学院学报,2004,19(3):68-71. |
| |
| 作者姓名： | 曹欣伟 |
| |
| 作者单位： | 西安文理学院物理系，陕西西安710065 |
| |
| 摘 要： | 本使用严格对角化方法对S=1／2自旋阶梯模型进行了数值模拟计算研究，通过对不同长度自旋阶梯中两条单链和链间耦合部分各自对基态能量、能隙的贡献比例和自旋关联的考察，认为该系统处于自旋液体状态，同时模拟计算的结果对沿链方向形成交错磁场的假设提出了质疑。
|
| 关 键 词： | 自旋阶梯 反铁磁 磁场 自旋隙 自旋关联 |
| 文章编号： | 1008-5564(2004)03-0068-04 |
| 修稿时间： | 2004年4月19日 |
Exact diagonalization studies of the spin=1/2 Heisenberg Ladder |
| |
| Cao Xinwei.Exact diagonalization studies of the spin=1/2 Heisenberg Ladder[J].Journal of Xi‘an University of Arts & Science:Natural Science Edition,2004,19(3):68-71. |
| |
| Authors: | Cao Xinwei |
| |
| Abstract: | In current paper, the s=1/2 Antiferromagnetic Spin Ladder (AFSL) system is numerically investigated by using Exact Diagonalize method. When considering the ground energy and the energy gap of the system, the contribution from chains and rungs are respective evalued for ladders of different length. The spin-spin correlations along chain is calculated too. All of the results obtained are consistent with the Spin Liquid Theory. The Previous assumption that formation of staggered magnetic field along chains which induced by interchains interaction is not confirmed in current simulation. |
| |
| Keywords: | Spin Ladder Spin Correlation Spin Gap contribution Ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
