Superconducting proximity effect in thin-film Y1Ba2Cu3O7-delta-Ag/Al-Pb structures

Martin A. M. Gijs; Daphne Scholten; Theo van Rooy; Ton Gerrits; Martin F. H. Schuurmans

doi:10.1117/12.20886

1 October 1990 Superconducting proximity effect in thin-film Y1Ba2Cu3O7-delta-Ag/Al-Pb structures

Martin A. M. Gijs, Daphne Scholten, Theo van Rooy, Ton Gerrits, Martin F. H. Schuurmans

Proceedings Volume 1287, High Tc Superconductivity: Thin Films and Applications; (1990) https://doi.org/10.1117/12.20886
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

We have studied the superconducting critical current 1. of Y1Ba2Cu3O7,-Ag/M-Pb proximity junctions. The current-voltage (I.V) characteristics are typically those of a superconductor-normal metal-superconductor (S-N-S) junction. The Y1Ba2Cu3O7.-Ag/Al-Pb junctions show sharp Shapiro steps in a microwave field. The dependence of step height on microwave power is well described by the Resistively Shunted Junction (RSJ) model, assuming a IC cx: Sin ( Josephson behaviour, where ço is the pha difference of the superconducting order parameter across the junction. The Josephson current shows an interference pattern in a magnetic field applied parallel to the junction plane.

Citation Download Citation

Martin A. M. Gijs, Daphne Scholten, Theo van Rooy, Ton Gerrits, and Martin F. H. Schuurmans "Superconducting proximity effect in thin-film Y1Ba2Cu3O7-delta-Ag/Al-Pb structures", Proc. SPIE 1287, High Tc Superconductivity: Thin Films and Applications, (1 October 1990); https://doi.org/10.1117/12.20886

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