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arXiv · 2010.04472

Cryogen-free one hundred microKelvin refrigerator

Jiaojie Yan·Jianing Yao·Vladimir Shvarts·Rui-Rui Du·Xi Lin
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Abstract

Temperature below 100 microKelvin is achieved in a customized cryogen-free dilution refrigerator with a copper-nuclear demagnetization stage. The lowest temperature of conduction electrons of the demagnetization stage is below 100 microKelvin as measured by a pulsed platinum NMR thermometer and the temperature can remain below 100 microKelvin for over 10 hours. An up to 9 T demagnetization magnetic field and an up to 12 T research magnetic field can be controlled independently, provided by a coaxial room-temperature-bore cryogen-free magnet.

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Jiaojie Yan, Jianing Yao, Vladimir Shvarts, Rui-Rui Du, Xi Lin. 2020-10-09. Cryogen-free one hundred microKelvin refrigerator. https://doi.org/10.1063/5.003649

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