XXVIII International Symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 11-15, 2024
Superconductivity

Theoretical study of self-oscillations in the RFTES detector

L. S. Solomatov^a, A. V. Merenkov^a, S. V. Shitov<sup>ab

a</sup> National University of Science and Technology «MISIS», Moscow, Russia
^b Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Moscow, Russia

Abstract: Hypotheses for the self-oscillation in the RFTES detector are considered. The model of competition between heating current and critical current in the film microbridge at the interface with the electrodes, and a model of local suppression of superconductivity due to hot spot, are analyzed. The simulation results qualitatively confirm the experimental data.

Keywords: RFTES bolometer, high-Q resonator, superconducting microbridge, electron gas, self-oscillation, critical current.

Received: 18.04.2024
Revised: 18.04.2024
Accepted: 08.05.2024

DOI: 10.61011/FTT.2024.06.58233.2HH

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