Two Gaps Make a High Temperature Superconductor?

Details Two Gaps Make a High Temperature Superconductor? Two Gaps Make a High Temperature Superconductor?

2007-06-28

arxiv.org/abs/0706.4282v2

Rep. Prog. Phys. 71, 062501 (2008).

Physics

Condensed Matter

Superconductivity

Related material can be found at http://www.physics.ubc.ca/~quantmat/ARPES/PUBLICATIONS/articles.html

Scientific paper

10.1088/0034-4885/71/6/062501

One of the keys to the high-temperature superconductivity puzzle is the identification of the energy scales associated with the emergence of a coherent condensate of superconducting electron pairs. These might provide a measure of the pairing strength and of the coherence of the superfluid, and ultimately reveal the nature of the elusive pairing mechanism in the superconducting cuprates. To this end, a great deal of effort has been devoted to investigating the connection between the superconducting transition temperature Tc and the normal-state pseudogap crossover temperature T*. Here we present a review of a large body of experimental data that suggests a coexisting two-gap scenario, i.e. superconducting gap and pseudogap, over the whole superconducting dome.

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