Weak Localization Effect in Superconductors by Radiation Damage

Details Weak Localization Effect in Superconductors by Radiation Damage Weak Localization Effect in Superconductors by Radiation Damage

1999-09-24

arxiv.org/abs/cond-mat/9909358v1

Physics

Condensed Matter

Superconductivity

16 pages plus 3 figures, revtex, 76 references, For more information, Plesse see http://www.fen.bilkent.edu.tr/~yjkim

Scientific paper

10.1103/PhysRevB.61.14733

Large reductions of the superconducting transition temperature $T_{c}$ and the accompanying loss of the thermal electrical resistivity (electron-phonon interaction) due to radiation damage have been observed for several A15 compounds, Chevrel phase and Ternary superconductors, and $\rm{NbSe_{2}}$ in the high fluence regime. We examine these behaviors based on the recent theory of weak localization effect in superconductors. We find a good fitting to the experimental data. In particular, weak localization correction to the phonon-mediated interaction is derived from the density correlation function. It is shown that weak localization has a strong influence on both the phonon-mediated interaction and the electron-phonon interaction, which leads to the universal correlation of $T_{c}$ and resistance ratio.

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