Coulomb Blockade Thermometry on a Wide Temperature Range

O. M. Hahtela; A. Kemppinen; J. Lehtinen; A. J. Manninen; E. Mykkänen; M. Prunnila; N. Yurttagül; F. Blanchet; M. Gramich; B. Karimi; E. T. Mannila; J. Muhojoki; J. T. Peltonen; J. P. Pekola

doi:10.1109/cpem49742.2020.9191726

arXiv · 2101.03932

Coulomb Blockade Thermometry on a Wide Temperature Range

O. M. Hahtela·A. Kemppinen·J. Lehtinen·A. J. Manninen·E. Mykkänen·M. Prunnila·N. Yurttagül·F. Blanchet·M. Gramich·B. Karimi·E. T. Mannila·J. Muhojoki·J. T. Peltonen·J. P. Pekola

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Abstract

The Coulomb Blockade Thermometer (CBT) is a primary thermometer for cryogenic temperatures, with demonstrated operation from below 1 mK up to 60 K. Its performance as a primary thermometer has been verified at temperatures from 20 mK to 200 mK at uncertainty level below 1 % (k = 2). In a new project, our aim is to extend the metrologically verified temperature range of the primary CBT up to 25 K. We also demonstrate close-to-ideal operation of a CBT with only two tunnel junctions when the device is embedded in a low-impedance environment.

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O. M. Hahtela, A. Kemppinen, J. Lehtinen, A. J. Manninen, E. Mykkänen, M. Prunnila, N. Yurttagül, F. Blanchet, M. Gramich, B. Karimi, E. T. Mannila, J. Muhojoki, J. T. Peltonen, J. P. Pekola. 2021-01-11. Coulomb Blockade Thermometry on a Wide Temperature Range. https://doi.org/10.1109/cpem49742.2020.9191726

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