Bistability in superconducting rings containing an inhomogeneous Josephson junction

URN to cite this document:: urn:nbn:de:bvb:355-epub-80833
DOI to cite this document:: 10.5283/epub.8083

Gaaß, Markus ; Nadj-Perge, S. ; Radovic, Z. ; Bauer, A. ; Aprili, M. ; Wegscheider, Werner ; Strunk, Christoph

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Date of publication of this fulltext: 05 Aug 2009 13:58

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Abstract

We investigate the magnetic response of a superconducting Nb ring containing a ferromagnetic PdNi Josephson junction and a tunnel junction in parallel. Doubling of the switching frequency is observed within certain intervals of the external magnetic field. For sinusoidal current-phase relations in both junctions, our model of a double superconducting quantum interference device (a small ...