Anomalous temperature dependence of the order parameter of a superconductor with weakly correlated impurities
arXiv:1012.3902 · doi:10.1134/S0021364011030040
Abstract
It is shown that weak correlations between the pair-breaking impurities in superconductors influence a temperature dependence of the order parameter within the Ginzburg and Landau region if the correlation radius of impurities R is greater than the coherence length of the superconductor .Dependence of the square of the average order parameter on a temperature difference changes its slope in a region $ξ_0\sqrt{T_c/(T_c-T)\sim R $. Influence of correlations on other thermodynamic properties of superconductors is discussed too.
6 pages, few typos corrected