Quantum phase transitions and Bose-Einstein condensation of magnons in hexagonal spin systems
文献类型：期刊论文
| 作者 | Wang, HT ; Wang, Y |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2007 |
| 卷号 | 19期号:38 |
| 关键词 | MEAN-FIELD THEORY LONG-RANGE ORDER MAGNETIC-FIELD LADDER CU-2(C5H12N2)(2)CL-4 HEISENBERG-ANTIFERROMAGNET CRITICAL-POINT HALDANE GAP STATE TLCUCL3 RBFECL3 |
| ISSN号 | 0953-8984 |
| 通讯作者 | Wang, HT (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | We study the S = 1 Heisenberg antiferromagnet with single-ion anisotropy in the hexagonal lattice using the bond-operator theory. The quantum phase transition from the spin singlet state to the ordered one and the field-induced long-range order in the perpendicular plane are shown to be described by the condensation of magnons. The results are compared with those from experiments using AFeX(3) (A = Cs, Rb and X = Cl, Br). The critical exponent a near H-c1 is found to be about 1.144 in CsFeCl3 and 1.599 in CsFeBr3, which provides another route to study the dimensional crossover behavior in low-dimensional spin systems. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51714]  |
| 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 | Wang, HT,Wang, Y. Quantum phase transitions and Bose-Einstein condensation of magnons in hexagonal spin systems[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(38). |
| APA | Wang, HT,&Wang, Y.(2007).Quantum phase transitions and Bose-Einstein condensation of magnons in hexagonal spin systems.JOURNAL OF PHYSICS-CONDENSED MATTER,19(38). |
| MLA | Wang, HT,et al."Quantum phase transitions and Bose-Einstein condensation of magnons in hexagonal spin systems".JOURNAL OF PHYSICS-CONDENSED MATTER 19.38(2007). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。