Pair phase fluctuations and the pseudogap

被引：31

作者：

Eckl, T ^{[1
]}

Scalapino, DJ

Arrigoni, E

Hanke, W

机构：

[1] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.66.140510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The single-particle density of states and the tunneling conductance are studied for a two-dimensional BCS-like Hamiltonian with a d(x)(2)-y(2)-gap and phase fluctuations. The latter are treated by a classical Monte Carlo simulation of an XY model. Comparison of our results with recent scanning tunneling spectra of Bi-based high-T-c cuprates supports the idea that the pseudogap behavior observed in these experiments can be understood as arising from phase fluctuations of a d(x)(2)-y(2) pairing gap whose amplitude forms on an energy scale set by T-c(MF) well above the actual superconducting transition.

引用

页码：1 / 4

页数：4

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