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.
@article{arxiv.2101.03932,
title = {Coulomb Blockade Thermometry on a Wide Temperature Range},
author = {O. M. Hahtela and A. Kemppinen and J. Lehtinen and A. J. Manninen and E. Mykkänen and M. Prunnila and N. Yurttagül and F. Blanchet and M. Gramich and B. Karimi and E. T. Mannila and J. Muhojoki and J. T. Peltonen and J. P. Pekola},
journal= {arXiv preprint arXiv:2101.03932},
year = {2021}
}
Comments
2 pages, 3 figures, 2020 Conference on Precision Electromagnetic Measurements (CPEM), Denver (Aurora), CO, USA, 2020