Design and realization of an all d -wave dc π-superconducting quantum interference device

The predominantly dx2−y2-pairing symmetry in most high-Tc superconductors provides the opportunity to fabricate Josephson junction circuits in which part of the junctions are biased by a phase difference of the superconducting order parameter of π. We present fabrication and measurements of an all h...

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Bibliographic Details
Published in:Applied physics letters 2000-02, Vol.76 (7), p.912-914
Main Authors: Schulz, R. R., Chesca, B., Goetz, B., Schneider, C. W., Schmehl, A., Bielefeldt, H., Hilgenkamp, H., Mannhart, J., Tsuei, C. C.
Format: Article
Language:English
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Summary:The predominantly dx2−y2-pairing symmetry in most high-Tc superconductors provides the opportunity to fabricate Josephson junction circuits in which part of the junctions are biased by a phase difference of the superconducting order parameter of π. We present fabrication and measurements of an all high-Tc dc superconducting quantum interference device (dc SQUID) realized with thin-film technology, of which the Josephson junctions consist of one standard junction and one junction with a π-phase shift. The characteristics of the π-SQUID are compared with the properties of a standard high-Tc SQUID.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.125627