Cooling of a superconductor by quasiparticle tunneling

A. J. Manninen; J. K. Suoknuuti; M. M. Leivo; J.P. Pekola

doi:10.1063/1.124051

Cooling of a superconductor by quasiparticle tunneling

A. J. Manninen^*
, J. K. Suoknuuti
, M. M. Leivo
, J.P. Pekola

^*Corresponding author for this work

Not published at VTT

University of Jyväskylä

Research output: Contribution to journal › Article › Scientific › peer-review

30 Citations (Scopus)

Abstract

We have extended the cryogenic cooling method based on tunneling between a superconductor and another metal to the case when both metals are superconducting but when their energy gaps are different; earlier, this method was applied between a superconductor and a normal metal. The electron system of a titanium strip with the superconducting transition temperature T_c2=0.51 K has been cooled from 1.02T_c2 to below 0.7T_c2 by this method, using aluminum as the other superconductor.

Original language	English
Pages (from-to)	3020-3022
Journal	Applied Physics Letters
Volume	74
Issue number	20
DOIs	https://doi.org/10.1063/1.124051
Publication status	Published - 17 May 1999
MoE publication type	A1 Journal article-refereed

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AU - Pekola, J.P.

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AB - We have extended the cryogenic cooling method based on tunneling between a superconductor and another metal to the case when both metals are superconducting but when their energy gaps are different; earlier, this method was applied between a superconductor and a normal metal. The electron system of a titanium strip with the superconducting transition temperature Tc2=0.51 K has been cooled from 1.02Tc2 to below 0.7Tc2 by this method, using aluminum as the other superconductor.

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Cooling of a superconductor by quasiparticle tunneling

Abstract

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