Temperature dependence of the superconducting gap in high-Tc cuprates

Details Temperature dependence of the superconducting gap in high-Tc cuprates Temperature dependence of the superconducting gap in high-Tc cuprates

2004-08-10

arxiv.org/abs/cond-mat/0408211v2

Phys. Rev. Lett. 94, 157005 (2005)

Physics

Condensed Matter

Superconductivity

Text close to the published version. Minor textual corrections in comparison to the previous version

Scientific paper

10.1103/PhysRevLett.94.157005

It is proposed that (i) the temperature dependence of the superconducting gap Delta(T) in high-Tc cuprates can be predicted just from the knowledge of Delta(0) and the critical temperature Tc; and, in particular, (ii) Delta(0)/Tc > 4 implies that Delta(Tc) is not equal to zero, while Delta(0)/Tc < 4 corresponds to Delta(Tc) = 0. A number of tunneling experiments appear to support the above proposition, and, furthermore, show reasonable quantitative agreement with a model (cond-mat/0308428), which is based on the two-dimensional stripe hypothesis.

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