Current phase relation of Y1Ba2Cu3O7(-δ) step edge junction

Polushkin, Vladimir; Uchaikin, S.; Knappe, Silvia; Koch, Hans; David, B.; Grundler, D.

doi:https://doi.org/10.1109/77.403170

Zugriffsnummer	30516
Dokumenttyp	Konferenzartikel in Zeitschrift
Sprache	Englisch
Titel	Current phase relation of Y₁Ba₂Cu₃O₇(-δ) step edge junction
Autor(in); Institution	Polushkin, Vladimir; 9.33, Kryoelektronik, PTB-Berlin Uchaikin, S.; not affiliated Knappe, Silvia; 9.33, Kryoelektronik, PTB-Berlin Koch, Hans; 9.33, Kryoelektronik, PTB-Berlin David, B.; Philips Research Laboratories, Dept. Technical Systems, Hamburg, GERMANY Grundler, D.; not affiliated
Quelle/Jahr	IEEE Transactions on Applied Superconductivity: 5 (1995), 2
ISSN	1051-8223
DOI	https://doi.org/10.1109/77.403170
Verlag	New York: IEEE
Konferenzangaben	Applied Superconductivity Conference 1994 (ASC 1994), Boston, Mass., 16-21, October, 1994, USA
Freie Schlagworte	Cooper pairs ; Josephson effect ; SQUIDs ; barium compounds ; electric impedance ; high-temperature superconductors ; inductance ; superconducting device testing ; yttrium compounds
Zusammenfassung	The small signal rf impedance of Y₁Ba₂Cu₃O_7-δ/ step edge junction rf SQUIDs operating in a strongly nonhysteretic mode has been measured. The phase dependent inductance L_J(φ) and the current phase relation I_p(φ) of step-edge junctions embedded in SQUIDs are calculated from measurement data following the Vincent-Deaver approach. Two of three junctions investigated revealed a sinusoidal current phase relation. I_p(φ) of the third junction seemed to be non-sinusoidal and hysteretic. A model explaining the origin of the non-sinusoidality of I_p(φ) is proposed.

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Polushkin, V., Uchaikin, S., Knappe, S., Koch, H., David, B., & Grundler, D. (1995). Current phase relation of Y₁Ba₂Cu₃O₇(-δ) step edge junction. IEEE Transactions on Applied Superconductivity, 5(2). https://doi.org/10.1109/77.403170

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