Doping induced inhomogeneity in high-Tc superconductors

Details Doping induced inhomogeneity in high-Tc superconductors Doping induced inhomogeneity in high-Tc superconductors

2000-11-15

arxiv.org/abs/cond-mat/0011252v1

Physics

Condensed Matter

Superconductivity

5 pages, 3 eps figures. Expanded version of talk presented by AVB at the ISS 2000, Oct 14-16, Tokyo, Japan

Scientific paper

10.1016/S0921-4534(01)00192-7

Doping and disorder are inseparable in the superconducting cuprates. Assuming the simplest possible disordered doping, we construct a semiphenomenological model and analyze its experimental consequences. Among the affected experimental quantities are the ARPES spectra and thermodynamic properties. From our model we make a prediction for the width of the local superconducting gap distribution with the only experimentally unknown parameter being the superconducting correlation length. Thus, our model provides a direct way of determining the superconducting correlation length from a known experimental gap distribution.

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