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Quantum capacitance and charge sensing of a superconducting double dot

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dc.contributor.authorLambert, Nicholas J.
dc.contributor.authorEsmail, Adam A.
dc.contributor.authorEdwards, Megan
dc.contributor.authorPollock, Felix A.
dc.contributor.authorLovett, Brendon William
dc.contributor.authorFerguson, Andrew
dc.date.accessioned2016-09-30T12:30:12Z
dc.date.available2016-09-30T12:30:12Z
dc.date.issued2016-09
dc.identifier245865128
dc.identifier9c1d3b33-5539-44eb-915e-84ff36668f97
dc.identifier84988345465
dc.identifier000384400300030
dc.identifier.citationLambert , N J , Esmail , A A , Edwards , M , Pollock , F A , Lovett , B W & Ferguson , A 2016 , ' Quantum capacitance and charge sensing of a superconducting double dot ' , Applied Physics Letters , vol. 109 , no. 11 , 112603 . https://doi.org/10.1063/1.4962811en
dc.identifier.issn0003-6951
dc.identifier.otherORCID: /0000-0001-5142-9585/work/47136577
dc.identifier.urihttps://hdl.handle.net/10023/9582
dc.descriptionWe acknowledge the support from Hitachi Cambridge Laboratory and EPSRC Grant No. EP/K027018/1. A.J.F. is supported by a Hitachi Research fellowship.en
dc.description.abstractWe study the energetics of a superconducting double dot, by measuring both the quantum capacitance of the device and the response of a nearby charge sensor. We observe different behaviour for odd and even charge states and describe this with a model based on the competition between the charging energy and the superconducting gap. We also find that, at finite temperatures, thermodynamic considerations have a significant effect on the charge stability diagram.
dc.format.extent4
dc.format.extent1010229
dc.language.isoeng
dc.relation.ispartofApplied Physics Lettersen
dc.subjectQC Physicsen
dc.subjectT Technologyen
dc.subjectNDASen
dc.subject.lccQCen
dc.subject.lccTen
dc.titleQuantum capacitance and charge sensing of a superconducting double doten
dc.typeJournal itemen
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1063/1.4962811
dc.description.statusPeer revieweden
dc.identifier.grantnumberen


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