Vavra, O. and Pfaff, W. and Strunk, Ch. (2009) Planar S-(S/F)-S Josephson junctions induced by the inverse proximity effect. APPLIED PHYSICS LETTERS, 95 (6): 062501. ISSN 0003-6951,
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We present a utilization of the inverse proximity effect in superconductor-ferromagnet (S-F) bilayer to generate lateral Josephson junctions. The weak link is created by a Pd(0.95)Fe(0.05) strip across a Nb bridge. Close to T(C) and in perpendicular magnetic field the junctions exhibit a modulation of the critical current I(C)(B) similar to a Fraunhofer interference pattern which proves the dc Josephson effect. The structure contains three weak links (two different areas) in series which result in the observation of two periods scalable with the areas penetrated by magnetic flux. Measurements of Shapiro steps prove the presence of the ac Josephson effect.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETOQUENCHED SUPERCONDUCTING VALVE; FERROMAGNET; FIELD; critical currents; ferromagnetic materials; interface magnetism; iron alloys; Josephson effect; magnetic flux; niobium; palladium alloys; proximity effect (superconductivity); superconducting junction devices; superconducting transition temperature |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Sep 2020 09:51 |
| Last Modified: | 09 Sep 2020 09:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28573 |
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