Local suppression of Josephson currents in niobium/two-dimensional electron gas/niobium structures by an injection current

Authors
Neurohr, K Schapers, T Malindretos, J Lachenmann, S Braginski, AI Luth, H Behet, M Borghs, G Golubov, AA
Citation
K. Neurohr et al., Local suppression of Josephson currents in niobium/two-dimensional electron gas/niobium structures by an injection current, PHYS REV B, 59(17), 1999, pp. 11197-11200
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
17
Year of publication
1999
Pages
11197 - 11200
Database
ISI
SICI code
0163-1829(19990501)59:17<11197:LSOJCI>2.0.ZU;2-9
Abstract
We investigated niobium-AlGaSb/InAs-niobium hybrid structures using a high mobility two-dimensional electron gas as a weak link. The Josephson current observed in this structure was suppressed by an injection current driven i nto the weak link via an additional normal lead. Using a four-terminal conf iguration the supercurrent is suppressed all over the weak link. In a three -terminal configuration it was possible to suppress the supercurrent locall y. [S0163-1829(99)06217-7].