Andreev current for low temperature thermometry

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2015
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
1-4
Series
Applied Physics Letters, Volume 106, issue 18
Abstract
We demonstrate experimentally that disorder enhanced Andreev current in a tunnel junction between a normal metal and a superconductor provides a method to measure electronic temperature, specifically at temperatures below 200 mK when aluminum is used. This Andreev thermometer has some advantages over conventional quasiparticle thermometers: For instance, it does not conduct heat and its reading does not saturate until at lower temperatures. Another merit is that the responsivity is constant over a wide temperature range.
Description
VK: Low Temperature Laboratory
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Citation
Faivre , T , Golubev , D & Pekola , J 2015 , ' Andreev current for low temperature thermometry ' , Applied Physics Letters , vol. 106 , no. 18 , 182602 , pp. 1-4 . https://doi.org/10.1063/1.4919892