On the nature of the superconducting gap in the cuprates

Quintanilla, Jorge and Gyorffy, B.L. (2002) On the nature of the superconducting gap in the cuprates. Journal of Physics-condensed Matter, 14 (25). pp. 6591-6600. ISSN 0953-8984. (The full text of this publication is not available from this repository)

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Abstract

Recent experiments indicate that the excitation spectrum of the cuprates is characterized, in the superconducting state, by two energy scales: the coherence energy' Delta(c) and the `pseudogap' Delta(p) Here we consider a simple generalization of-the BCS model that yields exotic pairing and can describe, phenomenologically, the generic trends in the critical temperature T-c of cuprate superconductors. We use the model to predict the gap in the single-particle spectrum arising from the superconductivity and we find evidence that it corresponds to the lower of the two energy scales, Delta(c), seen in the experiments. This provides further support to the view that the origin of the pseudogap is not superconducting fluctuations.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: Jorge Quintanilla
Date Deposited: 13 Oct 2010 13:39
Last Modified: 07 Apr 2014 11:13
Resource URI: http://kar.kent.ac.uk/id/eprint/25616 (The current URI for this page, for reference purposes)
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