تقرير
On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK
| العنوان: | On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK |
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| المؤلفون: | Palma, M., Scheller, C. P., Maradan, D., Feshchenko, A. V., Meschke, M., Zumbühl, D. M. |
| المصدر: | Appl. Phys. Lett. 111, 253105 (2017) |
| سنة النشر: | 2017 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | 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 \emph{both} the electronic leads \emph{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$\pm$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 microkelvin nanoelectronics. Comment: 4 pages, 3 color figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.5002565 |
| URL الوصول: | http://arxiv.org/abs/1708.09491 |
| رقم الأكسشن: | edsarx.1708.09491 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.5002565 |
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