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Low-energy physical properties of high-T-c superconducting Cu oxides: A comparison between the resonating valence bond and experiments
Yang, Kai-Yu; Shih, C. T.; Chou, C. P.; Huang, S. M.; Lee, T. K.; Xiang, T.; Zhang, F. C.; Yang, KY , Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China
2006
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号73期号:22页码:-
摘要In a recent review by Anderson and co-workers, it was pointed out that an early resonating valence bond (RVB) theory is able to explain a number of unusual properties of high-temperature superconducting (SC) Cu oxides. Here we extend previous calculations to study more systematically the low-energy physical properties of the plain vanilla d-wave RVB state, and to compare the results with the available experiments. We use a renormalized mean-field theory combined with variational Monte Carlo and power Lanczos methods to study the RVB state of an extended t-J model in a square lattice with parameters suitable for the hole-doped Cu oxides. The physical observable quantities we study include the specific heat, the linear residual thermal conductivity, the in-plane magnetic penetration depth, the quasiparticle energy at the antinode (pi,0), the superconducting energy gap, the quasiparticle spectra, and the Drude weights. The traits of nodes (including k(F), the Fermi velocity v(F), and the velocity along Fermi surface v(2)), and the SC order parameter are studied. Comparisons of the theory and the experiments in cuprates show an overall qualitative agreement, especially on their doping dependences.
部门归属Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China; Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China; Tunghai Univ, Dept Phys, Taichung 40704, Taiwan; Acad Sinica, Inst Phys, Taipei, Taiwan; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing, Peoples R China; Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
关键词Angle-resolved Photoemission Inplane Penetration Depth Temperature Specific-heat Quasi-particle Transport Fermi-surface j Model Cuprate Superconductors Carrier Concentration Electronic-structure Doping Dependence
学科领域Physics
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收录类别SCI
WOS记录号WOS:000238696300104
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被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5972
专题理论物理所1978-2010年知识产出
通讯作者Yang, KY , Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China
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Yang, Kai-Yu,Shih, C. T.,Chou, C. P.,et al. Low-energy physical properties of high-T-c superconducting Cu oxides: A comparison between the resonating valence bond and experiments[J]. PHYSICAL REVIEW B,2006,73(22):-.
APA Yang, Kai-Yu.,Shih, C. T..,Chou, C. P..,Huang, S. M..,Lee, T. K..,...&Yang, KY , Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China.(2006).Low-energy physical properties of high-T-c superconducting Cu oxides: A comparison between the resonating valence bond and experiments.PHYSICAL REVIEW B,73(22),-.
MLA Yang, Kai-Yu,et al."Low-energy physical properties of high-T-c superconducting Cu oxides: A comparison between the resonating valence bond and experiments".PHYSICAL REVIEW B 73.22(2006):-.
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