Current Phase Relation of Y1Ba2Cu3O7-δ Step Edge Junction

S. Uchaikin, V. Polushkin, B. David, S. Knappe, H. Koch, D. Grundler

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The small signal rf impedance of Y1Ba2-Cu3O7-δ step edge junction rf SQUIDs operating in a strongly nonhysteretic mode has been measured. The phase dependent inductance LJ(φ) and the current phase relation Ip(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. Ip (φ) of the third junction seemed to be nonsinusoidal and hysteretic. A model explaining the origin of the non-sinusoidality of Ip (φ) is proposed.

Original languageEnglish
Pages (from-to)2790-2793
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume5
Issue number2
DOIs
StatePublished - Jun 1995
Externally publishedYes

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