Supercurrent switching in three- and four-terminal Josephson junctions
Control of the Josephson current by varying a gate current has recently been demonstrated in both four-terminal and three-terminal junctions. We show that, when the gates are weakly coupled to the Josephson junction, the Josephson current versus gate current (or versus gate voltage) relation is the...
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Veröffentlicht in: | Journal of applied physics 1998-12, Vol.84 (12), p.6758-6762 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Control of the Josephson current by varying a gate current has recently been demonstrated in both four-terminal and three-terminal junctions. We show that, when the gates are weakly coupled to the Josephson junction, the Josephson current versus gate current (or versus gate voltage) relation is the same for both the four- and three-terminal geometries. At low temperature, the supercurrent switches abruptly as a function of the gate voltage, but only slowly as a function of the gate current. |
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ISSN: | 0021-8979 1089-7550 |
DOI: | 10.1063/1.369004 |