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Disorder enhancement of quasiparticle lifetimes in superconductors

Disorder enhancement of quasiparticle lifetimes in superconductors We calculate the quasiparticle lifetime due to Coulomb interactions in a disordered superconductor in perturbation theory with respect to the screened Coulomb interaction. We find a diffusion enhancement of the relaxation rate similar to the normal metal case. The temperature dependence of the lifetime is found to be the same as in a clean superconductor. The relation of these results to experiment and ways to improve the theory are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Disorder enhancement of quasiparticle lifetimes in superconductors

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References (15)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00682748
Publisher site
See Article on Publisher Site

Abstract

We calculate the quasiparticle lifetime due to Coulomb interactions in a disordered superconductor in perturbation theory with respect to the screened Coulomb interaction. We find a diffusion enhancement of the relaxation rate similar to the normal metal case. The temperature dependence of the lifetime is found to be the same as in a clean superconductor. The relation of these results to experiment and ways to improve the theory are discussed.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: Nov 6, 2004

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