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Flux flow in nearly pure low- κ superconductors

Flux flow in nearly pure low- κ superconductors A theory of flux flow useful for low- κ superconductors is given where the electrodynamics is nonlocal. Fields and chemical potential gradients are induced by a transport current which causes the vortex to move with velocity v → L . These are determined self-consistently by the requirement that they generate a supercurrent to correspond to the displacement of a static vortex and compensate for scattering of thermally excited quasiparticles. Making use of an approximate analytic solution for a static vortex by Kramer and Pesch, it is shown that for the case of pure ( l ≫ ξ 0 ) superconductors at low temperatures ( T ≲ 0.5 T c ) there is no backflow. The component of v → L in the direction of the transport current is the transport velocity, a result of the Hall effect on the bound states in the vortex core. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Flux flow in nearly pure low- κ superconductors

Physical Review B , Volume 12 (7) – Oct 1, 1975
6 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 1975 The American Physical Society
ISSN
1095-3795
DOI
10.1103/PhysRevB.12.2634
Publisher site
See Article on Publisher Site

Abstract

A theory of flux flow useful for low- κ superconductors is given where the electrodynamics is nonlocal. Fields and chemical potential gradients are induced by a transport current which causes the vortex to move with velocity v → L . These are determined self-consistently by the requirement that they generate a supercurrent to correspond to the displacement of a static vortex and compensate for scattering of thermally excited quasiparticles. Making use of an approximate analytic solution for a static vortex by Kramer and Pesch, it is shown that for the case of pure ( l ≫ ξ 0 ) superconductors at low temperatures ( T ≲ 0.5 T c ) there is no backflow. The component of v → L in the direction of the transport current is the transport velocity, a result of the Hall effect on the bound states in the vortex core.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Oct 1, 1975

There are no references for this article.