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Cold electron Josephson transistor

A. M. Savin·J. P. Pekola·J. T. Flyktman·A. Anthore·F. Giazotto
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Abstract

A superconductor-normal metal-superconductor mesoscopic Josephson junction has been realized in which the critical current is tuned through normal current injection using a symmetric electron cooler directly connected to the weak link. Both enhancement of the critical current by more than a factor of two, and supercurrent suppression have been achieved by varying the cooler bias. Furthermore, this transistor-like device demonstrates large current gain $\sim$20) and low power dissipation.

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A. M. Savin, J. P. Pekola, J. T. Flyktman, A. Anthore, F. Giazotto. 2004-03-30. Cold electron Josephson transistor. https://doi.org/10.1063/1.1756192

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