Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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8
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Metrologia, Volume 59, issue 4, pp. 1-8
Abstract
We investigate temperature uncertainty of Coulomb blockade thermometer (CBT) arising from inevitable non-uniformities in tunnel junction arrays. The corrections are proportional to the junction resistance variance in the linear operation regime and this result holds approximately also beyond this originally studied high temperature range. We present both analytical and numerical results, and discuss briefly their implications on achievable uniformity based on state-of-the-art fabrication of sensors.Description
| openaire: EC/H2020/824109/EU//EMP Funding Information: We thank Joonas T Peltonen for useful discussions. This work was supported by Academy of Finland Grant 312057 (QTF Centre of Excellence), European Microkelvin Platform (EMP, No. 824109 EU Horizon 2020) and Real-K Project (Grant No. 18SIB02). Real-K received funding from the European Metrology Programme for Innovation and Research (EMPIR) co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme. The numerical calculations were performed using the computer infrastructure within the Aalto University School of Science (Science-IT). Publisher Copyright: © 2022 BIPM & IOP Publishing Ltd.
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Pekola, J P, Praks, E, Yurttagül, N & Karimi, B 2022, 'Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry', Metrologia, vol. 59, no. 4, 045009, pp. 1-8. https://doi.org/10.1088/1681-7575/ac79e8