Anomalous Flux-Flow Dynamics in Layered Type-II Superconductors at Low Temperatures

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.2640· OSTI ID:532631

Feigelman, M; Skvortsov, M ^[1]

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1. L.D. Landau Institute for Theoretical Physics, Moscow 117940 (Russia)

Low-temperature dissipation due to vortex motion in strongly anisotropic type-II superconductors with a moderate disorder ({Delta}{sup 2}/E{sub F}{lt}{h_bar}/{tau} {lt}{Delta}) is shown to be determined by the Zener-type transitions between the localized electronic states in the vortex core. Statistics of these levels is described by the random matrix ensemble of class C defined recently by Atland and Zirnbauer, so the vortex motion leads naturally to a new example of a parametric statistics of energy levels. The flux-flow conductivity {sigma}{sub xx} is a bit lower than the quasiclassical one and {ital grows} slowly with the increase of the electric field. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 532631
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DISSIPATION FACTOR
ELECTRIC FIELDS
ELECTRON-PHONON COUPLING
HALL EFFECT
MAGNETIC FLUX
MIXED STATE
TYPE-II SUPERCONDUCTORS
VORTICES
localised states