Flux Flow in {ital d} -Wave Superconductors: Low Temperature Universality and Scaling

Journal Article · Fri Aug 01 00:00:00 EDT 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.1377· OSTI ID:538608

Kopnin, N B; Volovik, G E ^[1]; Kopnin, N B ^[2]; Volovik, G E ^[3]

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1. Landau Institute for Theoretical Physics, 117334 Moscow (Russia)
2. Laboratoire de Physique des Solides, Universite Paris-Sud, Batiment 510, 91405 Orsay (France)
3. Helsinki University of Technology, Low Temperature Laboratory, P.O. Box 2200, FIN-02015 HUT, Helsiniki (Finland)

We demonstrate that superclean d -wave superconductors with {Delta}{sup 2}{sub {infinity}}{tau}/E{sub F} {gt}1 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. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538608
• Journal Information: Physical Review Letters, Vol. 79, Issue 7; Other Information: PBD: Aug 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
D WAVES
SCALING LAWS
VORTICES
DISSIPATION FACTOR
LANDAU DAMPING
RELAXATION TIME
QUASI PARTICLES