Flux-vortex structure in type-II superconductors carrying a longitudinal current

Journal Article · Fri Dec 31 23:00:00 EST 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.450· OSTI ID:5335339

Marsh, G E ^[1]

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1. Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

For values of [ital r] greater than the coherence length [xi], the axially symmetric Ginzburg-Landau equations are solved for a flux vortex carrying a longitudinal current. The field is not force free, and it is shown that there are no regular solutions to the force-free field equations that decay exponentially with increasing penetration into a superconductor. It is also shown, in this approximation, that in the case of a vortex carrying a nonzero longitudinal current, the Ginzburg-Landau equations are equivalent to the radial pressure-balance equilibrium relation in ideal magnetohydrodynamics. The techniques developed in this field to address stability issues can then be used to answer questions related to vortex stability.

• OSTI ID: 5335339
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:1; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AXIAL SYMMETRY
CURRENTS
ELECTRIC CURRENTS
FLUID MECHANICS
GINZBURG-LANDAU THEORY
HYDRODYNAMICS
MAGNETIC FLUX
MAGNETOHYDRODYNAMICS
MECHANICS
STABILITY
SUPERCONDUCTORS
SYMMETRY
TYPE-II SUPERCONDUCTORS
VORTICES