Interference patterns of multifacet20×(0−π)Josephson junctions with ferromagnetic barrier

S. Scharinger, C. Gürlich, R. G. Mints, M. Weides, H. Kohlstedt, E. Goldobin, D. Koelle, R. Kleiner
2010 Physical Review B  
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.
doi:10.1103/physrevb.81.174535 fatcat:hluk37glwreklcrcj4vip3itqy