Effects of the Dzyaloshinskii-Moriya interaction on low-energy magnetic excitations in copper benzoate
文献类型：期刊论文
| 作者 | Zhao, JZ; Wang, XQ; Xiang, T ; Su, ZB; Yu, L; Zhao, JZ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW LETTERS
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| 出版日期 | 2003 |
| 卷号 | 90期号:20页码:- |
| 关键词 | Field-induced Gap Dimensional S=1/2 Antiferromagnet Cu Benzoate Yb4as3 Chain Model |
| ISSN号 | 0031-9007 |
| 英文摘要 | We have investigated the physical effects of the Dzyaloshinskii-Moriya (DM) interaction in copper benzoate. In the low-field limit, the spin gap is found to vary as H(2/3)ln(1/6)(J/mu(B)H(s)) (H-s: an effective staggered field induced by the external field H) in agreement with the prediction of conformal field theory, while the staggered magnetization varies as H-1/3 and the ln(1/3)(J/mu(B)H(s)) correction predicted by conformal field theory is not confirmed. The linear scaling relation between the momentum shift and the magnetization is broken. We have determined the coupling constant of the DM interaction and have given a complete quantitative account for the field dependence of the spin gaps along all three principal axes, without resorting to additional interactions such as interchain coupling. A crossover to strong applied field behavior is predicted for further experimental verification. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000183115200050 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13288]  |
| 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 | Zhao, JZ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhao, JZ,Wang, XQ,Xiang, T,et al. Effects of the Dzyaloshinskii-Moriya interaction on low-energy magnetic excitations in copper benzoate[J]. PHYSICAL REVIEW LETTERS,2003,90(20):-. |
| APA | Zhao, JZ,Wang, XQ,Xiang, T,Su, ZB,Yu, L,&Zhao, JZ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2003).Effects of the Dzyaloshinskii-Moriya interaction on low-energy magnetic excitations in copper benzoate.PHYSICAL REVIEW LETTERS,90(20),-. |
| MLA | Zhao, JZ,et al."Effects of the Dzyaloshinskii-Moriya interaction on low-energy magnetic excitations in copper benzoate".PHYSICAL REVIEW LETTERS 90.20(2003):-. |
入库方式： OAI收割
来源：理论物理研究所
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