Primary thermometry in the intermediate Coulomb blockade regime

A.V. Feshchenko (Corresponding Author), M. Meschke, David Gunnarsson, Mika Prunnila, L. Roschier, J.S. Penttilä, J.P. Pekola

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)


    We investigate Coulomb blockade thermometers (CBT) in an intermediate temperature regime, where measurements with enhanced accuracy are possible due to the increased magnitude of the differential conductance dip. Previous theoretical results show that corrections to the half width and to the depth of the measured conductance dip of a sensor are needed, when leaving the regime of weak Coulomb blockade towards lower temperatures. In the present work, we demonstrate experimentally that the temperature range of a CBT sensor can be extended by employing these corrections without compromising the primary nature or the accuracy of the thermometer.
    Original languageEnglish
    Pages (from-to)36-44
    JournalJournal of Low Temperature Physics
    Issue number1-2
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed


    • Coulomb blockade
    • thermometry
    • tunnel junctions


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