ITP OpenIR  > 理论物理所科研产出  > SCI期刊论文
Zhao, JZ; Wang, XQ; Xiang, T; Su, ZB; Yu, L; Zhao, JZ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Effects of the Dzyaloshinskii-Moriya interaction on low-energy magnetic excitations in copper benzoate
Source PublicationPHYSICAL REVIEW LETTERS
KeywordField-induced Gap Dimensional S=1/2 Antiferromagnet Cu Benzoate Yb4as3 Chain Model
AbstractWe 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.
2003
ISSN0031-9007
Volume90Issue:20Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13288
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorZhao, JZ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Recommended Citation
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):-.
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