Vortex pinning and magnetic field penetration into a long periodically modulated Josephson contact

Vortex pinning and magnetic field penetration into a long periodically modulated Josephson contact

A system of vortices formed near the boundary of a long periodically modulated Josephson contact has been calculated with account of the pinning due to inhomogeneity of the medium for the case of a monotonically growing external magnetic field at different values of the pinning parameter g which is...

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Veröffentlicht in:Superconductor science & technology 1999-01, Vol.12 (1), p.6-10
1. Verfasser: Zelikman, M A
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description A system of vortices formed near the boundary of a long periodically modulated Josephson contact has been calculated with account of the pinning due to inhomogeneity of the medium for the case of a monotonically growing external magnetic field at different values of the pinning parameter g which is proportional to the critical current and the spatial modulation period. It is shown that there exists a critical pinning parameter g sub(c) demarcating two regimes with different types of critical state. The obtained value g sub(c) identical with 3.369 differs from the value 0.9716 suggested by other researchers. The slope of the magnetic field profile near the boundary is obtained as a function of g.
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title Vortex pinning and magnetic field penetration into a long periodically modulated Josephson contact
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