Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors
- 15 July 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (3), 386-389
- https://doi.org/10.1103/physrevlett.67.386
Abstract
We present a new theoretical approach that permits the rf surface impedance of type-II superconductors to be calculated over a wide range of angular frequencies ω, magnetic inductions B, and temperatures T. Our approach, based on a self-consistent treatment of vortex dynamics, includes the influence of both vortex pinning and flux creep upon in a unified manner, by making use of continued-fraction-expansion results for the dynamic mobility of a particle undergoing Brownian motion in a periodic potential.
Keywords
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