Gate-Controlled Superconductivity in a Diffusive Multiwalled Carbon Nanotube

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorTsuneta, T.
dc.contributor.authorLechner, L.
dc.contributor.authorHakonen, Pertti J.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-09-10T09:02:29Z
dc.date.available2015-09-10T09:02:29Z
dc.date.issued2007
dc.description.abstractWe have investigated electrical transport in a diffusive multiwalled carbon nanotube contacted using superconducting leads made of an Al/Ti sandwich structure. We find proximity-induced superconductivity with measured critical currents up to Icm=1.3  nA, tunable by the gate voltage down to 10 pA. The supercurrent branch displays a finite zero bias resistance which varies as R0∝I exp −α cm with α=0.74. Using IV characteristics of junctions with phase diffusion, a good agreement is obtained with the Josephson coupling energy in the long, diffusive junction model of A. D. Zaikin and G. F. Zharkov [Sov. J. Low Temp. Phys. 7, 184 (1981)].en
dc.description.versionPeer revieweden
dc.format.extent087002/1-4
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTsuneta, T. & Lechner, L. & Hakonen, Pertti J. 2007. Gate-Controlled Superconductivity in a Diffusive Multiwalled Carbon Nanotube. Physical Review Letters. Volume 98, Issue 8. 087002/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.98.087002en
dc.identifier.doi10.1103/physrevlett.98.087002
dc.identifier.issn0031-9007 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/17640
dc.identifier.urnURN:NBN:fi:aalto-201509104250
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseriesVolume 98, Issue 8
dc.rights© 2007 American Physical Society (APS). This is the accepted version of the following article: Tsuneta, T. & Lechner, L. & Hakonen, Pertti J. 2007. Gate-Controlled Superconductivity in a Diffusive Multiwalled Carbon Nanotube. Physical Review Letters. Volume 98, Issue 8. 087002/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.98.087002, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.087002.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordsuperconductorsen
dc.subject.keywordcarbon nanotubesen
dc.subject.otherPhysicsen
dc.titleGate-Controlled Superconductivity in a Diffusive Multiwalled Carbon Nanotubeen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen

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