We present the performance of commercial quartz tuning forks (QTFs) operating at resonance frequencies of 32 kHz, 77 kHz, and 100 kHz in the temperature range below 1 K and in high magnetic fields up to 7.5 T. We show that characteristics of the quartz tuning forks, in particular, the normalized QTF resonance frequency, manifest a universal temperature dependence, which is independent of the magnetic field strength. This feature makes the QTFs very promising low temperature thermometers in high magnetic fields in the temperature range below 1 K having the B/T ratio up to 1000. We also discuss the physical origin of the observed dependencies.
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Research Article| November 06 2019
Quartz tuning fork—A potential low temperature thermometer in high magnetic fields
M. Človečko ;
M. Človečko, P. Skyba; Quartz tuning fork—A potential low temperature thermometer in high magnetic fields. Appl. Phys. Lett. 4 November 2019; 115 (19): 193507. https://doi.org/10.1063/1.5124736
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