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Applied Physics Letters

Thermally switched superconducting weak-link transistor with current gain

S.-B. Lee, D. G. Hasko, H. Ahmed

Published Apr 17, 2000• 10 citations
Publisher

Abstract

We report on a method of controling the critical current in a superconducting weak-link device. A superconducting weak-link transistor with an integrated, but electrically isolated, heater has been fabricated. The heater raises the temperature of the weak link above the bath temperature thus reducing the critical current required to give an output voltage. A maximum current gain (ratio of critical current change to applied heater current change) of 10.5 was achieved.

DOI
10.1063/1.126325

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