,Sub-millikelvin station at Synergetic Extreme Condition User Facility

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The Institute of Physics, Chinese Academy of Sciences, is in charge of the construction of the Synergetic Extreme Condition User Facility (SECUF) in Huairou, Beijing. The SECUF is a comprehensive facility focused on providing ex-treme physical conditions for scientific research, including an ultralow temperature, ultrahigh pressure, ultrahigh magnetic field, and ultrafast laser. The ultralow temperature will be realized by the sub-millikelvin (sub-mK) station, whose main component is an adiabatic nuclear demagnetization refrigerator (ANDR). The refrigerator is designed to have a base temper-ature below 1 mK and a magnetic field up to 16 T for experiments, as well as a characteristic parameter of B/T≥104 T/K. In this review, we introduce adiabatic nuclear demagnetization refrigeration, thermometry from 10 mK to sub-mK, the properties and parameters of the ANDR of the SECUF, and related prospective research topics.
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