Interference patterns of multifacet 20×(0−π) Josephson junctions with ferromagnetic barrier

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

doi:10.1103/PhysRevB.81.174535

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Interference patterns of multifacet 20×(0−π) Josephson junctions with ferromagnetic barrier

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

DOI 10.1103/PhysRevB.81.174535 · Physical Review B

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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 nonuniform flux density (parallel to the barrier) resulting from screening currents in the electrodes in the presence of a (parasitic) off-plane field component.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	9.2	Pressure not reported	unknown