Valence-bond spin-liquid state in two-dimensional frustrated spin-1/2 Heisenberg antiferromagnets
文献类型：期刊论文
| 作者 | Zhang, GM; Hu, H; Yu, L ; Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2003 |
| 卷号 | 91期号:6页码:- |
| 关键词 | Mean-field Theory Quantum Antiferromagnets Dimer Order Model Phase Superconductivity Lattice |
| ISSN号 | 0031-9007 |
| 英文摘要 | Fermionic valence-bond approach in terms of SU(4) representation is proposed to describe the J(1)-J(2) frustrated Heisenberg antiferromagnetic (AF) model on a bipartite square lattice. A uniform mean field solution without breaking the translational and rotational symmetries describes a valence-bond spin-liquid state, interpolating the two different AF ordered states in the large J(1) and large J(2) limits, respectively. This novel spin-liquid state is gapless with the vanishing density of states at the Fermi nodal points. Moreover, a sharp resonance peak in the dynamic structure factor is predicted for momenta q=(0,0) and (pi,pi) in the strongly frustrated limit J(2)/J(1)similar to1/2, which can be checked by neutron scattering experiments. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000184678200048 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13247]  |
| 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 | Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, GM,Hu, H,Yu, L,et al. Valence-bond spin-liquid state in two-dimensional frustrated spin-1/2 Heisenberg antiferromagnets[J]. PHYSICAL REVIEW LETTERS,2003,91(6):-. |
| APA | Zhang, GM,Hu, H,Yu, L,&Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(2003).Valence-bond spin-liquid state in two-dimensional frustrated spin-1/2 Heisenberg antiferromagnets.PHYSICAL REVIEW LETTERS,91(6),-. |
| MLA | Zhang, GM,et al."Valence-bond spin-liquid state in two-dimensional frustrated spin-1/2 Heisenberg antiferromagnets".PHYSICAL REVIEW LETTERS 91.6(2003):-. |
入库方式： OAI收割
来源：理论物理研究所
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