Flux creep characteristics in high-temperature superconductors
- 12 February 1990
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 56 (7), 680-682
- https://doi.org/10.1063/1.103310
Abstract
We describe the voltage‐current characteristics of YBa2Cu3O7−δ epitaxial films within the flux creep model in a manner consistent with the resistive transition behavior. The magnitude of the activation energy, and its temperature and magnetic field dependences, are readily derived from the experimentally observed power law characteristics and show a (1−T/Tc)3/2 type of behavior near Tc. The activation energy is a nonlinear function of the current density and it enables the determination of the shape of the flux line potential well.Keywords
This publication has 15 references indexed in Scilit:
- Optical and electrical enhancement of flux creep in epitaxial filmsPhysical Review Letters, 1989
- Quasi-two-dimensional phase fluctuations in bulk superconducting single crystalsPhysical Review B, 1989
- Flux creep and high-field critical currents in epitaxial thin films ofPhysical Review Letters, 1989
- Critical Currents in [001] Grains and across Their Tilt Boundaries in Y FilmsPhysical Review Letters, 1988
- Resistive Transition of High-Temperature SuperconductorsPhysical Review Letters, 1988
- Kosterlitz-Thouless transition of fluxless solitons in superconductingsingle crystalsPhysical Review B, 1988
- Giant Flux Creep and Irreversibility in an Y-Ba-Cu-O Crystal: An Alternative to the Superconducting-Glass ModelPhysical Review Letters, 1988
- Ordering, metastability and phase transitions in two-dimensional systemsJournal of Physics C: Solid State Physics, 1973
- Flux Creep in Type-II SuperconductorsPhysical Review B, 1969
- Theory of Flux Creep in Hard SuperconductorsPhysical Review Letters, 1962