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.date.accessioned2025-10-08T07:14:49Z
dc.date.available2025-10-08T07:14:49Z
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 quasiparticle tunneling. 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.extent3
dc.format.mimetypeapplication/pdf
dc.identifier.citationMacLeod, S J, Kafanov, S & Pekola, J P 2009, 'Periodicity in Al/Ti superconducting single electron transistors', Applied Physics Letters, vol. 95, no. 5, 052503, pp. 1-3. https://doi.org/10.1063/1.3194777en
dc.identifier.doi10.1063/1.3194777
dc.identifier.issn0003-6951
dc.identifier.issn1077-3118
dc.identifier.otherPURE UUID: 93be467a-478b-4b4e-9db0-d8814b7ea8b3
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/93be467a-478b-4b4e-9db0-d8814b7ea8b3
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/13421016/1_2E3194777.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/139732
dc.identifier.urnURN:NBN:fi:aalto-202510087913
dc.language.isoenen
dc.publisherAmerican Institute of Physics
dc.relation.ispartofseriesApplied Physics Lettersen
dc.relation.ispartofseriesVolume 95, issue 5, pp. 1-3en
dc.rightsopenAccessen
dc.subject.keywordaluminium alloys
dc.subject.keywordenergy gap
dc.subject.keywordquasiparticles
dc.subject.keywordsingle electron transistors
dc.subject.keywordsuperconducting materials
dc.subject.keywordtitanium alloys
dc.titlePeriodicity in Al/Ti superconducting single electron transistorsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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