Trapping hot quasi-particles in a high-power superconducting electronic cooler
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© 2013 IOP Publishing. This is the accepted version of the following article: Nguyen, H. Q. ; Aref, T. ; Kauppila, V. J. ; Meschke, M. ; Winkelmann, C. B. ; Courtois, H. ; Pekola, Jukka. 2013. Trapping hot quasi-particles in a high-power superconducting electronic cooler. New Journal of Physics. Volume 15, Issue 8. 085013/1-9. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/15/8/085013, which has been published in final form at http://iopscience.iop.org/1367-2630/15/8/085013. This work is distributed under the Creative Commons Attribution 3.0 License https://creativecommons.org/licenses/by/3.0/
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2013
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Degree programme
Language
en
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085013/1-9
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New Journal of Physics, Volume 15, Issue 8
Abstract
The performance of hybrid superconducting electronic coolers is usually limited by the accumulation of hot quasi-particles in their superconducting leads. This issue is all the more stringent in large-scale and high-power devices, as required by the applications. Introducing a metallic drain connected to the superconducting electrodes via a fine-tuned tunnel barrier, we efficiently remove quasi-particles and obtain electronic cooling from 300 mK down to 130 mK with a 400 pW cooling power. A simple thermal model accounts for the experimental observations.Description
Keywords
hybrid superconducting electronic coolers, metallic drains, superconducting electrodes, tunnel barriers
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Citation
Nguyen, H. Q. & Aref, T. & Kauppila, V. J. & Meschke, M. & Winkelmann, C. B. & Courtois, H. & Pekola, Jukka. 2013. Trapping hot quasi-particles in a high-power superconducting electronic cooler. New Journal of Physics. Volume 15, Issue 8. 085013/1-9. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/15/8/085013.