1. Nb Lateral Josephson Junction Induced by Inverse Proximity Effect With NiFe.
- Author
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Lin, L. K., Huang, S. Y., Huang, J. H., and Lee, S. F.
- Subjects
JOSEPHSON junctions ,NIOBIUM ,SUPERCONDUCTORS ,NICKEL alloys ,FERROMAGNETISM ,CRITICAL currents ,TEMPERATURE effect ,MAGNETIC fields - Abstract
We utilize the inverse proximity effect in superconductor-ferromagnet bilayer to generate lateral Josephson junctions. The weak link is created by a ferromagnetic NiFe strip across a superconductor Nb bridge due to the inverse proximity effect. The critical currents of the junctions were measured at different temperatures and magnetic fields. The junctions exhibit a modulation of the critical current in perpendicular magnetic field similar to a Fraunhofer interference pattern which proves the dc Josephson effect. The weak link region induced by the NiFe in Nb persists down to 2 K. [ABSTRACT FROM PUBLISHER]
- Published
- 2012
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