Fabrication of high quality ferromagnetic Josephson junctions

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dc.creatorWeides, M.
dc.creatorTillmann, K.
dc.creatorKohlstedt, H.
dc.date2005-11-22
dc.date.accessioned2026-07-07T06:49:21Z
dc.date.available2026-07-07T06:49:21Z
dc.descriptionWe present ferromagnetic Nb/Al2O3/Ni60Cu40/Nb Josephson junctions (SIFS) with an ultrathin Al2O3 tunnel barrier. The junction fabrication was optimized regarding junction insulation and homogeneity of current transport. Using ion-beam-etching and anodic oxidation we defined and insulated the junction mesas. The additional 2 nm thin Cu layer below the ferromagnetic NiCu (SINFS) lowered interface roughness and ensured very homogeneous current transport. A high yield of junctional devices with jc spreads less than 2% was obtained.
dc.description5 pages, 6 figures; VORTEX IV conference contribution; Submitted to Physica C
dc.identifierhttps://arxiv.org/abs/cond-mat/0511546
dc.identifierhttp://arxiv.org/abs/cond-mat/0511546
dc.identifierPhysica C 437-438, 349-352 (2006)
dc.identifierdoi:10.1016/j.physc.2005.12.046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104312
dc.subjectSuperconductivity
dc.titleFabrication of high quality ferromagnetic Josephson junctions
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