Periodicity in Al/Ti superconducting single electron transistors

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMacLeod, Sarah J.
dc.contributor.authorKafanov, Sergey
dc.contributor.authorPekola, Jukka P.
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-05-20T09:00:43Z
dc.date.available2015-05-20T09:00:43Z
dc.date.issued2009
dc.description.abstractWe present experiments on single Cooper-pair transistors made of two different superconducting materials. We chose Ti and Al to create an energy gap profile such that the island has a higher gap than the leads, thereby acting as a barrier to quasiparticletunneling. Our transport measurements demonstrate that quasiparticle poisoning is suppressed in all our TiAlTi structures (higher gap for the island) with clear 2e periodicity observed, whereas full quasiparticle poisoning is observed in all AlTiAl devices (higher gap for the leads) with e periodicity.en
dc.description.versionPeer revieweden
dc.format.extent052503/1-3
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMacLeod, Sarah J. & Kafanov, Sergey & Pekola, Jukka. 2009. Periodicity in Al/Ti superconducting single electron transistors. Applied Physics Letters. Volume 95, Issue 5. P. 052503/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.3194777.en
dc.identifier.doi10.1063/1.3194777
dc.identifier.issn0003-6951 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/16107
dc.identifier.urnURN:NBN:fi:aalto-201505192750
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.ispartofseriesApplied Physics Lettersen
dc.relation.ispartofseriesVolume 95, Issue 5
dc.rights© 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://scitation.aip.org/content/aip/journal/apl/95/5/10.1063/1.3194777en
dc.rights.holderAmerican Institute of Physics
dc.subject.keywordaluminium alloysen
dc.subject.keywordenergy gapen
dc.subject.keywordquasiparticlesen
dc.subject.keywordsingle electron transistorsen
dc.subject.keywordsuperconducting materialsen
dc.subject.keywordtitanium alloysen
dc.subject.keywordtunnelingen
dc.subject.keywordleaden
dc.subject.keywordsuperconductivityen
dc.subject.otherPhysicsen
dc.titlePeriodicity in Al/Ti superconducting single electron transistorsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen

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