Y-Ba-Cu-O/AlOx/Nb Josephson Tunnel Junctions
- 1 December 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (12A), L2055
- https://doi.org/10.1143/jjap.26.l2055
Abstract
We have fabricated Y-Ba-Cu-O/AlO x /Nb Josephson tunnel junctions using electron-beam evaporation of Al and Nb films and natural oxidation. Superconducting Josephson current, hysteresis, and rf-induced voltage steps at a voltage greater than 0.4 mV have been clearly observed at 4.2 K. Moreover, rf-induced subharmonic steps have appeared. Magnetic field dependence of the superconducting Josephson current has also been studied.Keywords
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