Nonlocality in mesoscopic Josephson junctions with strip geometry

Details Nonlocality in mesoscopic Josephson junctions with strip geometry Nonlocality in mesoscopic Josephson junctions with strip geometry

1999-02-10

arxiv.org/abs/cond-mat/9902134v1

Phys. Rev. B 59, R9027 (1999)

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures, to be published in the RC section of Phys. Rev. B

Scientific paper

10.1103/PhysRevB.59.R9027

We study the current in a clean superconductor-normal-metal-superconductor junction of length d and width w in the presence of an applied magnetic field H. We show that both the geometrical pattern of the current density and the critical current as a function of the total flux in the junction, depend on the ratio of the Josephson vortex distance a_0 and the range r of the nonlocal electrodynamics. In particular, the critical current has the periodicity of the superconducting flux quantum only for ra_0. Comparing our results to recent experiments of Heida et al. [Phys. Rev. B 57, R5618 (1998)] we find good agreement.

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