Large-amplitude Shapiro steps and self-field effects in high-T c Josephson weak links
- 12 September 1994
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (11) , 1445-1447
- https://doi.org/10.1063/1.112010
Abstract
We demonstrate contiguous Shapiro steps of orders 0 and 1 having amplitudes of 1 mA in a YBa2Cu3O7−δ step‐edge junction operated at 38 K. A wide‐junction model that includes self‐field effects explains why the observed step amplitudes are smaller than expected from the resistively shunted point‐junction model. In spite of their reduced amplitudes, the observed steps are suitable for use in a proposed rapidly programmable Josephson voltage standard.Keywords
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