Chiral symmetry breaking and phase fluctuations:: A QED3 theory of the pseudogap state in cuprate superconductors -: art. no. 180511

被引:86
作者
Tesanovic, Z [1 ]
Vafek, O
Franz, M
机构
[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z, Canada
来源
PHYSICAL REVIEW B | 2002年 / 65卷 / 18期
关键词
D O I
10.1103/PhysRevB.65.180511
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A d-wave superconductor, its phase coherence progressively destroyed by unbinding of vortex-antivortex pairs, suffers an instability related to chiral-symmetry breaking in QED(3). The chiral manifold exhibits large degeneracy spanned by physical states acting as inherent "competitors" of d-wave superconductivity. Two of these states are associated with antiferromagnetic insulator and "stripe" phases, known to be stable in the pseudogap regime of cuprates near half-filling. The theory also predicts an additional, yet unobserved state: a d+ip phase-incoherent superconductor.
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页码:1 / 4
页数:4
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