Characteristics of advanced YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox edge type junctions
- 18 November 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (21) , 2754-2756
- https://doi.org/10.1063/1.105878
Abstract
This letter describes the scaling behavior and Josephson properties of improved YBCO/PBCO/YBCO edge‐type junctions. The critical current, normal‐state resistance, and IcRn product scale with barrier thickness and junction area. The coherence length of the PBCO barrier is estimated to be between 5 and 8 nm. As unambiguous evidence of the Josephson behavior, the microwave response as a function of microwave power, as well as the current modulation with applied magnetic field, have been studied: well‐developed Shapiro steps at 10 GHz have been observed, and the modulation of Ic(H) shows Fraunhofer‐like behavior with 95% Ic suppression.Keywords
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