Evolution from the vortex state to the critical state in a square-columnar Josephson-junction array

Journal Article · Thu Feb 29 23:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.6579· OSTI ID:279035

Chen, D; Moreno, J J; Hernando, A ^[1]

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1. Instituto de Magnetismo Aplicado, RENFE-UCM, 28230 Las Rozas, Madrid (Spain)

The remanence of a 25{times}25 square-columnar Josephson-junction array with normalized maximum junction current {ital i}{sub max} is calculated from the dc and ac Josephson equations, the Amp{grave e}re theorem, and the gauge invariance. It is shown that with increasing {ital i}{sub max} the remanence changes from zero to nonzero. The field profile in the nonzero remanence state has multiple peaks at smaller {ital i}{sub max} but a single peak at greater {ital i}{sub max}, indicating a transition from the vortex state to the critical state. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279035
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CONTINUITY EQUATIONS
ELECTRIC CURRENTS
GAUGE INVARIANCE
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
MAGNETIC FLUX
SQUARE LATTICES