Current phase relation of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7/(-δ) step edge junction

The small signal rf impedance of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-/spl delta// step edge junction rf SQUIDs operating in a strongly nonhysteretic mode has been measured. The phase dependent inductance L/sub J/(/spl phi/) and the current phase relation I/sub p/(/spl phi/) 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/sub p/(/spl phi/) of the third junction seemed to be non-sinusoidal and hysteretic. A model explaining the origin of the non-sinusoidality of I/sub p/(/spl phi/) is proposed


Published in:
IEEE Transactions on Appiled Superconductivity, 5, 2, 2790-2793
Year:
1995
Publisher:
Institute of Electrical and Electronics Engineers
ISSN:
1051-8223
Laboratories:




 Record created 2015-07-08, last modified 2018-09-13


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