Abstract
We suggest and demonstrate in experiment that two normal metal/insulator/superconductor (NIS) tunnel junctions combined in series to form a symmetric SINIS structure can operate as an efficient Peltier refrigerator. Specifically, it is shown that the SINIS structure with normal-state junction resistances 1.0 and 1.1 k is capable of reaching a temperature of about 100 mK starting from 300 mK. We estimate the corresponding cooling power to be 1.5 pW per total junction area of 0.8 μm2 at T=300 mK.
Original language | English |
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Pages (from-to) | 1996-1998 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 68 |
Issue number | 14 |
DOIs | |
Publication status | Published - 1996 |
MoE publication type | A1 Journal article-refereed |