Year: 2018
Type: article
Abstract: 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.
Source: Applied Physics Letters
DOI: 10.1063/1.5010236
Authors: L. B. Wang, O.-P. Saira, J. P. Pekola
Institutions: Aalto University, California Institute of Technology
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Academy of Finland
Awards: G3394561173, G7056366131
OpenAlex ID: W2766047333