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Title: | Efficient electron refrigeration using superconductor/spin-filter devices |
Authors: | Kawabata, Shiro; Ozaeta, A.; Vasenko, A. S.; Hekking, F. W. J.; Bergeret, F. S. ![]() |
Issue Date: | 2013 |
Publisher: | American Institute of Physics |
Citation: | Applied Physics Letters 103(3): 032602 (2013) |
Abstract: | Efficient electron-refrigeration based on a normal-metal/spin-filter/ superconductor junction is proposed and demonstrated theoretically. The spin-filtering effect leads to values of the cooling power much higher than in conventional normal-metal/nonmagnetic-insulator/superconductor coolers and allows for an efficient extraction of heat from the normal metal. We demonstrate that highly efficient cooling can be realized in both ballistic and diffusive multi-channel junctions in which the reduction of the electron temperature from 300 mK to around 50 mK can be achieved. Our results indicate the practical usefulness of spin-filters for efficiently cooling detectors, sensors, and quantum devices. © 2013 AIP Publishing LLC. |
Publisher version (URL): | http://dx.doi.org/10.1063/1.4813599 |
URI: | http://hdl.handle.net/10261/102140 |
DOI: | http://dx.doi.org/10.1063/1.4813599 |
Identifiers: | doi: 10.1063/1.4813599 issn: 0003-6951 e-issn: 1077-3118 |
Appears in Collections: | (CFM) Artículos |
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electron refrigeration.pdf | 1,09 MB | Adobe PDF | ![]() View/Open |
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