Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions
文献类型：期刊论文
| 作者 | Qin, Shaojin ; Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China; Lu, H. T.; Sun, L. Q.; Wang, Y. J.
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:22页码:- |
| 关键词 | Isotropic Heisenberg Chain Magnetic Excitations Arbitrary Spins Wigner Crystal Exchange Model Thermodynamics La6ca8cu24o41 Temperature Spectrum |
| ISSN号 | 1098-0121 |
| 英文摘要 | The temperature dependence of the specific heat and spin susceptibility of spin ladders with cyclic four-spin interactions in the rung-singlet phase is explored by making use of the transfer-matrix renormalization group method. The values of the spin gap are extracted from the specific heat and susceptibility, respectively. It is found that for different relative strengths between interchain and intrachain interactions, the spin gap is approximately linear with the cyclic four-spin interaction in the region far away from the critical point. Furthermore, we show that the dispersion for the one-triplet magnon branch can be obtained by numerically fitting the partition function. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000243195600083 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5826]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Shaojin,Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China,Lu, H. T.,et al. Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions[J]. PHYSICAL REVIEW B,2006,74(22):-. |
| APA | Qin, Shaojin,Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China,Lu, H. T.,Sun, L. Q.,&Wang, Y. J..(2006).Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions.PHYSICAL REVIEW B,74(22),-. |
| MLA | Qin, Shaojin,et al."Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions".PHYSICAL REVIEW B 74.22(2006):-. |
入库方式： OAI收割
来源：理论物理研究所
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