Cooperon propagator description of high-temperature superconductivity

被引：4

作者：

Berthod, C ^{[1
]}

Giovannini, B ^{[1
]}

机构：

[1] Univ Geneva, DPMC, CH-1211 Geneva 4, Switzerland

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2001年 / 364卷

关键词：

superconductivity; cuprates; pseudogap;

D O I：

10.1016/S0921-4534(01)00822-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A phenomenological description of the high-T-c superconductors based on the Cooperon propagator is presented. This model allows one to study the effects of local pairing correlations and long-range phase fluctuations on the same footing, both above and below T-c. Based on numerical calculations, it is shown that the two types of correlations contribute to the gap/pseudogap in the single-particle excitation spectra. The concourse of these two effects can induce low energy states, which should be observable in underdoped materials at very low temperature. (C) 2001 Elsevier Science B.V. All rights reserved.

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收藏

页码：467 / 470

页数：4

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