Heat transport and electron cooling in ballistic normal-metal/spin-filter/superconductor junctions
Mesoscale and Nanoscale Physics
2015-04-03 v2 Superconductivity
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.
Keywords
Cite
@article{arxiv.1407.1977,
title = {Heat transport and electron cooling in ballistic normal-metal/spin-filter/superconductor junctions},
author = {Shiro Kawabata and Andrey S. Vasenko and Asier Ozaeta and F. Sebastian Bergeret and Frank W. J. Hekking},
journal= {arXiv preprint arXiv:1407.1977},
year = {2015}
}
Comments
6 pages, 4 figures, to appear in Journal of Magnetism and Magnetic Materials