Effect of nearby Pearl vortices upon the $I_c$ vs $B$ characteristics of planar Josephson junctions in thin and narrow superconducting strips

Abstract

In this paper I show how to calculate the effect of a nearby Pearl vortex or antivortex upon the critical current $I_c(B)$ when a perpendicular magnetic induction $B$ is applied to a planar Josephson junction in a long, thin superconducting strip of width $W$ much less than the Pearl length $\Lambda =2{\lambda }^2/d$, where $\lambda$ is the London penetration depth and $d$ is the thickness ($d<\lambda$). The theoretical results provide a qualitative explanation of unusual features recently observed experimentally by Golod {\it et al.}\cite{Golod10} in a device with a similar geometry.

8 pages, 11 figures

References in corpus (4)

• Detection of the phase shift from a single quantized superconducting vortex
• Josephson junctions in thin and narrow rectangular superconducting strips
• Josephson junctions in narrow thin-film strips
• Corbino-geometry Josephson weak links in thin superconducting films

Cited by in corpus (10)

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• Near-surface InAs 2DEG on a GaAs substrate: characterization and superconducting proximity effect
• Interaction of Josephson junction and distant vortex in narrow thin-film superconducting strips
• Fraunhofer patterns for Josephson junctions in narrow thin-films with vortices trapped in one of the banks
• Numerical modelling of a vortex-based superconducting memory cell: dynamics and geometrical optimization of a fluxonic quantum dot
• Anomalous magnetic interference of cross-type Josephson junctions exposed to oblique magnetic fields
• Josephson critical currents in annular superconductors with Pearl vortices