High-performance electronic cooling with superconducting tunnel junctions

Hervé Courtois*, Hung Q. Nguyen, Clemens B. Winkelmann, Jukka P. Pekola

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
323 Downloads (Pure)

Abstract

When biased at a voltage just below a superconductor's energy gap, a tunnel junction between this superconductor and a normal metal cools the latter. While the study of such devices has long been focused to structures of submicron size and consequently cooling power in the picowatt range, we have led a thorough study of devices with a large cooling power up to the nanowatt range. Here we describe how their performance can be optimized by using a quasi-particle drain and tuning the cooling junctions' tunnel barrier.

Original languageEnglish
Pages (from-to)1139-1145
Number of pages7
JournalCOMPTES RENDUS PHYSIQUE
Volume17
Issue number10
DOIs
Publication statusPublished - 1 Dec 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Electronic cooling
  • Superconducting tunnel junctions
  • Thermo-electricity

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