Tunable Supercurrent Through Semiconductor Nanowires

Simple item page
dc.creatorDoh, Yong-Joo
dc.creatorvan Dam, Jorden A.
dc.creatorRoest, Aarnoud L.
dc.creatorBakkers, Erik P. A. M.
dc.creatorKouwenhoven, Leo P.
dc.creatorDe Franceschi, Silvano
dc.date2005-08-23
dc.date.accessioned2026-07-07T03:06:21Z
dc.date.available2026-07-07T03:06:21Z
dc.descriptionNanoscale superconductor-semiconductor hybrid devices are assembled from InAs semiconductor nanowires individually contacted by aluminum-based superconductor electrodes. Below 1 K, the high transparency of the contacts gives rise to proximity-induced superconductivity. The nanowires form superconducting weak links operating as mesoscopic Josephson junctions with electrically tunable coupling. The supercurrent can be switched on/off by a gate voltage acting on the electron density in the nanowire. A variation in gate voltage induces universal fluctuations in the normal-state conductance which are clearly correlated to critical current fluctuations. The ac Josephson effect gives rise to Shapiro steps in the voltage-current characteristic under microwave irradiation.
dc.description9 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0508558
dc.identifierhttp://arxiv.org/abs/cond-mat/0508558
dc.identifierScience 309, 272 (2005)
dc.identifierdoi:10.1126/science.1113523
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26778
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleTunable Supercurrent Through Semiconductor Nanowires
dc.typetext

Files

Collections

arXiv