Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry

Jukka P. Pekola (Corresponding Author), Eemil Praks, Nikolai Yurttagül, Bayan Karimi (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)

    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.

    Original languageEnglish
    Article number045009
    Number of pages9
    JournalMetrologia
    Volume59
    Issue number4
    DOIs
    Publication statusPublished - 1 Aug 2022
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Coulomb blockade
    • low temperature
    • non-uniformity errors
    • thermometry

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