Characteristics of advanced YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox edge type junctions

J. Gao, Y.M. Boguslavskij, B.B.G. Klopman, D. Terpstra, G.J. Gerritsma, H. Rogalla

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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.
Original languageEnglish
Pages (from-to)2754-2756
Number of pages3
JournalApplied physics letters
Volume59
Issue number21
DOIs
Publication statusPublished - 1991

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    Gao, J., Boguslavskij, Y. M., Klopman, B. B. G., Terpstra, D., Gerritsma, G. J., & Rogalla, H. (1991). Characteristics of advanced YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox edge type junctions. Applied physics letters, 59(21), 2754-2756. https://doi.org/10.1063/1.105878