Environment-induced overheating phenomena in Au-nanowire based Josephson junctions

O. V. Skryabina*, S. V. Bakurskiy, A. G. Shishkin, A. A. Klimenko, K. S. Napolskii, N. V. Klenov, I. I. Soloviev, V. V. Ryazanov, A. A. Golubov, D. Roditchev, M. Yu Kupriyanov, V. S. Stolyarov

*Corresponding author for this work

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Abstract

Unlike conventional planar Josephson junctions, nanowire-based devices have a bridge geometry with a peculiar coupling to environment that can favor non-equilibrium electronic phenomena. Here we measure the influence of the electron bath overheating on critical current of several bridge-like junctions built on a single Au-nanowire. Using the Usadel theory and applying the two-fluid description for the normal and superconducting components of the flowing currents, we reveal and explain the mutual influence of the neighbouring junctions on their characteristics through various processes of the electron gas overheating. Our results provide additional ways to control nanowire-based superconducting devices.

Original languageEnglish
Article number15274
JournalScientific reports
Volume11
Issue number1
Early online date27 Jul 2021
DOIs
Publication statusPublished - Dec 2021

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