Order-disorder transitions in bilayer Heisenberg models on the triangular lattice
文献类型：期刊论文
| 作者 | Gu, Q ; Shen, JL |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2000 |
| 卷号 | 62期号:5页码:3287 |
| 关键词 | QUANTUM ANTIFERROMAGNETS SPIN LADDERS GROUND-STATE NEEL ORDER SPECTRUM GAPS BOND |
| ISSN号 | 0163-1829 |
| 通讯作者 | Gu, Q (reprint author), Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China. |
| 中文摘要 | The triangular-lattice bilayer Heisenberg model with antiferromagnetic interlayer coupling J(0) is studied using strong-coupling perturbation theory and bond-operator mean-field theory. It is found that the model with ferromagnetic intralayer coupling J<0 undergoes a quantum order-disorder transition at a strong-J(0) critical point J(0c) = 3.83J. While for the model with J>0, the transition point is very small, J(0c)=0.15J. The result implies that the single-layer triangular Heisenberg antiferromagnet only has small long-range order parameter (if ordered) so that it is very sensitive to the interlayer perturbation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50432]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gu, Q,Shen, JL. Order-disorder transitions in bilayer Heisenberg models on the triangular lattice[J]. PHYSICAL REVIEW B,2000,62(5):3287. |
| APA | Gu, Q,&Shen, JL.(2000).Order-disorder transitions in bilayer Heisenberg models on the triangular lattice.PHYSICAL REVIEW B,62(5),3287. |
| MLA | Gu, Q,et al."Order-disorder transitions in bilayer Heisenberg models on the triangular lattice".PHYSICAL REVIEW B 62.5(2000):3287. |
入库方式： OAI收割
来源：物理研究所
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