2024-03-29T05:06:34Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1021402016-02-18T02:48:12Zcom_10261_115com_10261_3col_10261_368
Efficient electron refrigeration using superconductor/spin-filter devices
Kawabata, Shiro
Ozaeta, A.
Vasenko, A. S.
Hekking, F. W. J.
Bergeret, F. S.
European Commission
Japan Society for the Promotion of Science
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
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.
2014-09-17T08:06:27Z
2014-09-17T08:06:27Z
2013
2014-09-17T08:06:27Z
artículo
Applied Physics Letters 103(3): 032602 (2013)
http://hdl.handle.net/10261/102140
10.1063/1.4813599
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100001691
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100003339
eng
Publisher's version
http://dx.doi.org/10.1063/1.4813599
info:eu-repo/grantAgreement/EC/FP7/308850
openAccess
American Institute of Physics