Trapping hot quasi-particles in a high-power superconducting electronic cooler

Loading...
Thumbnail Image
Access rights
openAccess
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Date
2013-08-13
Major/Subject
Mcode
Degree programme
Language
en
Pages
9
1-9
Series
NEW JOURNAL OF PHYSICS, Volume 15
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
Other note
Citation
Nguyen, H Q, Aref, T, Kauppila, V J, Meschke, M, Winkelmann, C B, Courtois, H & Pekola, J P 2013, ' Trapping hot quasi-particles in a high-power superconducting electronic cooler ', New Journal of Physics, vol. 15, 085013, pp. 1-9 . https://doi.org/10.1088/1367-2630/15/8/085013