ITP OpenIR  > SCI期刊论文
Zhang, GM; Hu, H; Yu, L; Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
Valence-bond spin-liquid state in two-dimensional frustrated spin-1/2 Heisenberg antiferromagnets
Source PublicationPHYSICAL REVIEW LETTERS
KeywordMean-field Theory Quantum Antiferromagnets Dimer Order Model Phase Superconductivity Lattice
AbstractFermionic 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.
2003
ISSN0031-9007
Volume91Issue:6Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13247
CollectionSCI期刊论文
Corresponding AuthorZhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
Recommended Citation
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):-.
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