Cooperon propagator description of high temperature superconductivity

Details Cooperon propagator description of high temperature superconductivity Cooperon propagator description of high temperature superconductivity

2001-02-02

arxiv.org/abs/cond-mat/0102034v1

Physica C: Superconductivity 364-365, 467 (2001)

Physics

Condensed Matter

Superconductivity

LaTeX, 6 pages, 2 EPS figures; paper presented at New^3SC-3, Hawaii, 01/2001. To appear in Physica C

Scientific paper

10.1016/S0921-4534(01)00822-X

A phenomenological description of the high-Tc 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 Tc. 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.

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