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arXiv · 2605.20462

Sub-10 mK "In-cell" Magnetic Refrigeration for Cryogen-free Cryostats

Alexander M. Donald·Nicolas Silva·Christopher J. Ollmann·Roch Schanen·Chao Huan·Sangyun Lee·Dominique Laroche·Richard P. Haley·Mark W. Meisel·Rasul Gazizulin
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Abstract

A design and implementation of "in-cell" magnetic refrigeration to achieve sub-10 mK temperatures T in cryogen-free dilution refrigerators is presented. The ultra low temperatures below 5 mK are attained in finite magnetic fields B up to 1 T. The holding time below 5 mK varies between about 3 to 30 hours, depending on the final magnetic field after demagnetization process. The developed technique can be used to study low dimensional devices at ultra low electron temperatures in the High B/T regime.

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Alexander M. Donald, Nicolas Silva, Christopher J. Ollmann, Roch Schanen, Chao Huan, Sangyun Lee, Dominique Laroche, Richard P. Haley, Mark W. Meisel, Rasul Gazizulin. 2026-05-19. Sub-10 mK "In-cell" Magnetic Refrigeration for Cryogen-free Cryostats. https://doi.org/10.1063/5.0344424

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