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arXiv · 1407.1977

Heat transport and electron cooling in ballistic normal-metal/spin-filter/superconductor junctions

Shiro Kawabata·Andrey S. Vasenko·Asier Ozaeta·F. Sebastian Bergeret·Frank W. J. Hekking
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Abstract

We investigate electron cooling based on a clean normal-metal/spin-filter/superconductor junction. Due to the suppression of the Andreev reflection by the spin-filter effect, the cooling power of the system is found to be extremely higher than that for conventional normal-metal/nonmagnetic-insulator/superconductor coolers. Therefore we can extract large amount of heat from normal metals. Our results strongly indicate the practical usefulness of the spin-filter effect for cooling detectors, sensors, and quantum bits.

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Shiro Kawabata, Andrey S. Vasenko, Asier Ozaeta, F. Sebastian Bergeret, Frank W. J. Hekking. 2014-07-08. Heat transport and electron cooling in ballistic normal-metal/spin-filter/superconductor junctions. https://doi.org/10.1016/j.jmmm.2014.10.032

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