Flux-flow in nearly pure low-kappa superconductors

Journal Article · Wed Oct 01 00:00:00 EDT 1975 · Phys. Rev., B, v. 12, no. 7, pp. 2634-2639

OSTI ID:4147059

Bardeen, J; Sherman, R D

A theory of flux flow useful for low-kappa 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/subL/. 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 (lvery-much-greater-thanxi$sub 0$) superconductors at low temperatures (Tapproximately-less-than0.5T/subc/) there is no backflow. The component of v/subL/ 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.

• Research Organization: Physics Department, University of Illinois, Urbana, Illinois 61801
• NSA Number: NSA-33-004284
• OSTI ID: 4147059
• Journal Information: Phys. Rev., B, v. 12, no. 7, pp. 2634-2639, Journal Name: Phys. Rev., B, v. 12, no. 7, pp. 2634-2639; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERCONDUCTORS-- MAGNETIC FLUX
643901*
BCS THEORY
ELECTRONS
MEAN FREE PATH
MOTION
N66200* --Physics (Low Temperature)--Superconductivity
SUPERCONDUCTIVITY
VORTICES