Flux-flow in d-wave superconductors: Low temperature universality and scaling

Details Flux-flow in d-wave superconductors: Low temperature universality and scaling Flux-flow in d-wave superconductors: Low temperature universality and scaling

1997-04-22

arxiv.org/abs/cond-mat/9704184v3

Phys. Rev. Lett. 79 (1997) 1377

Physics

Condensed Matter

Superconductivity

RevTex file, 4 pages, no figures, submitted to Phys. Rev. Lett., revised after referee reports

Scientific paper

10.1103/PhysRevLett.79.1377

We demonstrate that superclean d-wave superconductors display a novel type of vortex dynamics: At low temperatures, both dissipative and transverse components of the flux-flow conductivity are found to approach universal values even in the limit of infinite relaxation time. A finite dissipation in the superclean limit is explained in terms of the Landau damping on zero-frequency vortex modes which appear due to minigap nodes in the bound-state spectrum in the vortex core. In the moderately clean regime the scaling law at low T and low field is obtained.

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