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Cooperon propagator description of high-temperature superconductivity

Published in Physica C: Superconductivity and Its Applications. 2001, vol. 364-365, p. 467-470
Abstract 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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BERTHOD, Christophe, GIOVANNINI, Bernard. Cooperon propagator description of high-temperature superconductivity. In: Physica C: Superconductivity and Its Applications, 2001, vol. 364-365, p. 467-470. doi: 10.1016/S0921-4534(01)00822-X https://archive-ouverte.unige.ch/unige:26785

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Deposited on : 2013-03-13

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