Weak-localization effect in superconductors from radiation damage

Date

2000

Authors

Park, M.-A.
Kim, Y.-J.

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Abstract

Large reductions of the superconducting transition temperature Tc 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 NbSe2 in the high-fluence regime. We examine these behaviors based on a recent theory of the weak localization effect in superconductors. We find a good fitting to the experimental data. In particular, the 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 Tc and the resistance ratio. ©2000 The American Physical Society.

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Physical Review B - Condensed Matter and Materials Physics

Publisher

American Physical Society

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Published Version (Please cite this version)

Language

English