Fabrication and characterization of multiterminal superconductor-insulator-normal metal-insulator-superconductor Josephson devices

I. P. Nevirkovets, O. Chernyashevskyy, J. B. Ketterson, E. Goldobin

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10 Scopus citations

Abstract

We report the fabrication and basic characteristics of a multiterminal SINIS device which has electrical leads connected to the middle N layer; here S, I, and N denote a superconductor (Nb), an insulator (Al Ox), and a normal metal (Al), respectively. We studied the behavior of the Josephson current through all layers on an injection current passing through one of the individual (NIS) junctions and along the N layer, as well as the influence of the injection current from one junction on the current-voltage characteristic of the other. In the latter case, a current gain and power gain, and good isolation between the input and output were observed.

Original languageEnglish (US)
Article number123903
JournalJournal of Applied Physics
Volume97
Issue number12
DOIs
StatePublished - 2005

Funding

The authors would like to thank A. A. Golubov, S. E. Shafranjuk, and A. F. Volkov for valuable comments and Professor Niemeyer’s group (PTB, Germany) for help with fabrication of photomasks. This work was supported by the National Science Foundation under Grant No. EIA-0218652 and use was made of facilities operated by the NSF-supported Materials Research Center.

ASJC Scopus subject areas

  • General Physics and Astronomy

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