%0 Journal Article %T Developing compact tuning fork thermometers for sub-mK temperatures and high magnetic fields %+ National High Magnetic Field Laboratory (NHMFL) %+ Ultra-basses températures (NEEL - UBT) %A Woods, A. %A Donald, A. %A Gazizulin, R. %A Collin, E. %A Steinke, L. %< avec comité de lecture %@ 0021-8979 %J Journal of Applied Physics %I American Institute of Physics %V 133 %N 2 %P 024501 %8 2023 %D 2023 %Z 2107.02387v4 %R 10.1063/5.0132492 %Z Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] %Z Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph]Journal articles %X There is a growing demand for experiments on calorimetric and thermal transport measurements at ultra-low temperatures below 1 mK and high magnetic fields up to 16 T. Particularly, milligram-sized solid samples are of great interest. We present the development of scalable thermometers based on quartz tuning fork resonators immersed in liquid 3 He and adapt hydrodynamic models to provide an improved description of temperature dependence in the high viscosity regime between 1 and 10 mK. We demonstrate successful thermometer operation and discuss the feasibility of fast and compact thermal probes suitable for small samples. %G English %2 https://cnrs.hal.science/hal-03938950/document %2 https://cnrs.hal.science/hal-03938950/file/ForkHighFieldPaperArxiv_last.pdf %L hal-03938950 %U https://cnrs.hal.science/hal-03938950 %~ UGA %~ CNRS %~ INPG %~ NEEL %~ NEEL-UBT %~ UGA-EPE