Superconductors with two critical temperatures
arXiv:cond-mat/0607303 · doi:10.1016/j.physc.2006.10.013
Abstract
We propose a simple model for superconductors endowed with two critical temperatures, corresponding to two second-order phase transitions, in the framework of the Ginzburg-Landau mean-field theory. For very large Cooper pair self-interaction, in addition to the standard condensation occurring in the Ginzburg-Landau theory, we find another phase transition at a lower temperature with a maximum difference of 15% between the two critical temperatures.
revtex, 3 pages, one eps figure
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