Anomalous flux-flow dynamics in layered type-II superconductors at low temperatures

M. V. Feigel’man, M. A. Skvortsov

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Low-temperature dissipation due to vortex motion in strongly anisotropic type-II superconductors with a moderate disorder (Δ2/EF ≪ ħ/τ ≪ Δ 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 σxx is a bit lower than the quasiclassical one and grows slowly with the increase of the electric field.

Original languageEnglish
Pages (from-to)2640-2643
Number of pages4
JournalPhysical Review Letters
Volume78
Issue number13
DOIs
Publication statusPublished - 31 Mar 1997
Externally publishedYes

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