Weak Localization Effect in Superconductors by Radiation Damage

Abstract

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 $\mathrm{NbS}{\mathrm{e}}_2$ 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.

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

References in corpus (4)

• A Constraint on the Anomalous Green's Function
• Pairing in the Bogoliubov-de Gennes equations
• Weak Localization Effect in Superconductors
• Compensation of Magnetic Impurity Effect in Superconductors by Radiation Damage

Cited by in corpus (3)

• A New Method of Probing the Phonon Mechanism in Superconductors including MgB${}_2$
• Superconductivity in systems exhibiting the Altshuler-Aronov anomaly
• A New Interpretation of Flux Quantization