Josephson Effects at 77 K in Grain Boundary Bridge Made of Thick Films
- 1 June 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (6A) , L1107-1109
- https://doi.org/10.1143/jjap.27.l1107
Abstract
Using the screen printing method, YBaCuO high T c superconducting films were fabricated. The thickness of the films was ≃30 µm and maximum grain size was ≃70 µm. T czero=90.7 K and J c=20 A/cm2 at 77 K were obtained. With a razor edge, the films were cut and formed to grain boundary bridges having a few grain boundaries in the bridge region. The devices showed clear Shapiro steps and SQUID patterns at 77 K.Keywords
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