On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK
On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK
复制标题
库仑封锁温度计的开关芯片冷却低至 2.8 mK
DOI:
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复制
发表时间:
2017
期刊:
影响因子:
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通讯作者:
D. Zumbühl
中科院分区:
文献类型:
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作者:
Y. B. Kalyoncu;Mario Palma;C. Scheller;D. Maradan;Anna Feshchenko;Matthias Meschke;D. Zumbühl
Cooling nanoelectronic devices below 10 mK is a great challenge since thermal conductivities become very small, thus creating a pronounced sensitivity to heat leaks. Here, we overcome these difficulties by using adiabatic demagnetization of both the electronic leads and the large metallic islands of a Coulomb blockade thermometer. This reduces the external heat leak through the leads and also provides on-chip refrigeration, together cooling the thermometer down to 2.8 ± 0.1 mK. We present a thermal model which gives a good qualitative account and suggests that the main limitation is heating due to pulse tube vibrations. With better decoupling, temperatures below 1 mK should be within reach, thus opening the door for μK nanoelectronics.
DOI:
10.48550/arxiv.1611.02483
发表时间:
2016
期刊:
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影响因子:
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作者:
Bradley D
通讯作者:
Bradley D