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arXiv · 1003.3216

Interference patterns of multifacet 20x(0-pi-) Josephson junctions with ferromagnetic barrier

S. Scharinger·C. Gürlich·R. G. Mints·M. Weides·H. Kohlstedt·E. Goldobin·D. Koelle·R. Kleiner
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Abstract

We have realized multifacet Josephson junctions with periodically alternating critical current density (MJJs) using superconductor-insulator-ferromagnet-superconductor heterostructures. We show that anomalous features of critical current vs. applied magnetic field, observed also for other types of MJJs, are caused by a non-uniform flux density (parallel to the barrier) resulting from screening currents in the electrodes in the presence of a (parasitic) off-plane field component.

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S. Scharinger, C. Gürlich, R. G. Mints, M. Weides, H. Kohlstedt, E. Goldobin, D. Koelle, R. Kleiner. 2010-03-16. Interference patterns of multifacet 20x(0-pi-) Josephson junctions with ferromagnetic barrier. https://doi.org/10.1103/physrevb.81.174535

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