Quantum Monte Carlo study on the phase transition for a generalized two-dimensional staggered dimerized Heisenberg model
文献类型：期刊论文
| 作者 | Zheng, R ; Liu, BG |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:11 |
| 关键词 | VALENCE-BOND GROUND-STATES SPIN-PEIERLS ANTIFERROMAGNETS |
| ISSN号 | 1674-1056 |
| 通讯作者 | Zheng, R (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | In order to gain a deeper understanding of the quantum criticality in the explicitly staggered dimerized Heisenberg models, we study a generalized staggered dimer model named the J(0)-J(1)-J(2) model, which corresponds to the staggered J-J' model on a square lattice and a honeycomb lattice when J(1)/J(0) equals 1 and 0, respectively. Using the quantum Monte Carlo method, we investigate all the quantum critical points of these models with J(1)/J(0) changing from 0 to 1 as a function of coupling ratio alpha = J(2)/J(0). We extract all the critical values of the coupling ratio alpha(c), for these models, and we also obtain the critical exponents nu, beta/nu, and eta using different finite-size scaling ansatz,. All these exponents are not consistent with the three-dimensional Heisenberg universality class, indicating some unconventional quantum critical points in these models. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [11174359, 10874232]; National Basic Research Program of China [2012CB932302] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51701]  |
| 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 | Zheng, R,Liu, BG. Quantum Monte Carlo study on the phase transition for a generalized two-dimensional staggered dimerized Heisenberg model[J]. CHINESE PHYSICS B,2012,21(11). |
| APA | Zheng, R,&Liu, BG.(2012).Quantum Monte Carlo study on the phase transition for a generalized two-dimensional staggered dimerized Heisenberg model.CHINESE PHYSICS B,21(11). |
| MLA | Zheng, R,et al."Quantum Monte Carlo study on the phase transition for a generalized two-dimensional staggered dimerized Heisenberg model".CHINESE PHYSICS B 21.11(2012). |
入库方式： OAI收割
来源：物理研究所
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