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Possibility of higher order critical fields in superconducting rings

Possibility of higher order critical fields in superconducting rings The behavior of a small superconducting ring or hollow cylinder in an axial magnetic field is studied using the nonlinear Ginzburg-Landau equations. We find that, if the radius of the cylinder is smaller than half the superconducting coherence length ξ(T), a periodic alternation between the superconducting and the normal state occurs as the magnetic field is increased. This defines higher order critical magnetic fields for vanishing and reentrant superconductivity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Possibility of higher order critical fields in superconducting rings

Riess, J.
Journal of Low Temperature Physics , Volume 47 (4) – Nov 6, 2004
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References (3)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00683735
Publisher site
See Article on Publisher Site

Abstract

The behavior of a small superconducting ring or hollow cylinder in an axial magnetic field is studied using the nonlinear Ginzburg-Landau equations. We find that, if the radius of the cylinder is smaller than half the superconducting coherence length ξ(T), a periodic alternation between the superconducting and the normal state occurs as the magnetic field is increased. This defines higher order critical magnetic fields for vanishing and reentrant superconductivity.

Journal

Journal of Low Temperature Physics – Springer Journals

Published: Nov 6, 2004

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