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Fast thermometry with a proximity Josephson junction

Wang, L. B. and Saira, O.-P. and Pekola, J. P. (2018) Fast thermometry with a proximity Josephson junction. Applied Physics Letters, 112 (1). Art. No. 013105. ISSN 0003-6951. doi:10.1063/1.5010236.

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We couple a proximity Josephson junction to a Joule-heated normal metal film and measure its electron temperature under steady state and nonequilibrium conditions. With a timed sequence of heating and temperature probing pulses, we are able to monitor its electron temperature in nonequilibrium with effectively zero back-action from the temperature measurement in the form of additional dissipation or thermal conductance. The experiments demonstrate the possibility of using a fast proximity Josephson junction thermometer for studying thermal transport in mesoscopic systems and for calorimetry.

Item Type:Article
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URLURL TypeDescription Paper
Saira, O.-P.0000-0001-9715-0897
Additional Information:© 2018 AIP Publishing. (Received 24 October 2017; accepted 19 December 2017; published online 3 January 2018) We acknowledge M. Meschke and J. T. Peltonen for technical help and D. Golubev for useful discussions. This work was supported by the Academy of Finland Center of Excellence program (Project Nos. 284594 and 273827). O.-P.S. was supported by the Kavli Prize Postdoctoral Fellowship in Nanoscience and a grant from the Nokia Foundation Jorma Ollila Fund. We acknowledge the Micronova Nanofabrication Centre of Aalto University for providing the processing facilities.
Funding AgencyGrant Number
Academy of Finland284594
Academy of Finland273827
Kavli FoundationUNSPECIFIED
Nokia Foundation Jorma Ollila FundUNSPECIFIED
Subject Keywords:Superconducting devices; Temperature measurement; Thermal instruments; Calorimetry; Nanomaterials
Issue or Number:1
Record Number:CaltechAUTHORS:20180103-121012535
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Official Citation:Fast thermometry with a proximity Josephson junction. L. B. Wang, O.-P. Saira, and J. P. Pekola. Applied Physics Letters 2018 112:1
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84057
Deposited By: George Porter
Deposited On:03 Jan 2018 20:53
Last Modified:15 Nov 2021 20:16

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