Anomalous temperature dependence of the order parameter of a superconductor with weakly correlated impurities

I. A. Fomin

doi:10.1134/S0021364011030040

Anomalous temperature dependence of the order parameter of a superconductor with weakly correlated impurities

Superconductivity 2015-05-20 v2

Authors: I. A. Fomin

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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 $\xi_0$ .Dependence of the square of the average order parameter on a temperature difference $T_c-T$ changes its slope in a region $\xi_0\sqrt{T_c/(T_c-T)\sim R$ . Influence of correlations on other thermodynamic properties of superconductors is discussed too.

Keywords

superconductivity order parameter weakly correlated impurities pair-breaking Ginzburg-Landau theory coherence length thermodynamic properties

Cite

@article{arxiv.1012.3902,
  title  = {Anomalous temperature dependence of the order parameter of a superconductor with weakly correlated impurities},
  author = {I. A. Fomin},
  journal= {arXiv preprint arXiv:1012.3902},
  year   = {2015}
}

Comments

6 pages, few typos corrected

Anomalous temperature dependence of the order parameter of a superconductor with weakly correlated impurities

Abstract

Keywords

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