Cryogen-free one hundred microkelvin refrigerator.
Cryogen-free one hundred microkelvin refrigerator.
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无制冷剂一百微开尔文冰箱。
DOI：
10.1063/5.003649
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Xi Lin
中科院分区：
文献类型：
--
作者：
Jiaojie Yan;Jianing Yao;V. Shvarts;R. Du;Xi Lin
低于100 µK的温度是在定制的无冷冻剂稀释冰箱中实现的，该冰箱具有铜核退磁阶段。用脉冲铂核磁共振温度计测得退磁阶段传导电子的最低温度低于100 µK，并能在100 µK以下保持10 h以上。通过同轴的室温孔无冷冻剂磁体，可以独立控制高达9 T的退磁磁场和高达12 T的研究磁场。
A temperature below 100 µK 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 µK as measured by using a pulsed platinum nuclear magnetic resonance thermometer, and the temperature can remain below 100 µK for over 10 h. A demagnetization magnetic field of up to 9 T and a research magnetic field of up to 12 T can be controlled independently, provided by a coaxial room-temperature-bore cryogen-free magnet.