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Dai, X; Su, ZB; Dai, X , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Mean-field theory for the spin-ladder system
Source PublicationPHYSICAL REVIEW B
KeywordHeisenberg-antiferromagnet Excitation Spectrum Model Gap Superconductivity Susceptibility (Vo)2p2o7 Chains State
AbstractIn the present paper, we propose a mean-held approach for spin ladders based upon the Jordan-Wigner transformation along an elaborately ordered path. We show on the mean-held level that ladders with even-numbered legs open an energy gap in their low-energy excitation with a magnitude close to the corresponding experimental values, whereas the low-energy excitation of the odd-numbered-leg ladders are gapless. It supports the validity of our approach. We then calculate the gap size and the excitation spectra of a two-leg-ladder system. Our result is in good agreement with both the experimental data and the numerical results. [S0163-1829(98)09901-9].
1998
ISSN0163-1829
Volume57Issue:2Pages:964-969
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12388
CollectionSCI期刊论文
Corresponding AuthorDai, X , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Dai, X,Su, ZB,Dai, X , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Mean-field theory for the spin-ladder system[J]. PHYSICAL REVIEW B,1998,57(2):964-969.
APA Dai, X,Su, ZB,&Dai, X , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1998).Mean-field theory for the spin-ladder system.PHYSICAL REVIEW B,57(2),964-969.
MLA Dai, X,et al."Mean-field theory for the spin-ladder system".PHYSICAL REVIEW B 57.2(1998):964-969.
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