Two-band model and MgB2_2 superconductivity

preprint2001arXivOpen access

Abstract

A simple two-band model with interband scattering of intraband pairs is applied to MgB2_2 superconductivity. An adjustable parameters set is chosen. The calculated TcT_c vs doping, isotope exponent and the heat capacity jump are in qualitative agreement with the observations.

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