Physics of the Solid State
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Theoretical study of self-oscillations in the RFTES detector
Solomatov L. S. 1, Merenkov A. V.1, Shitov S. V. 1,2
1National University of Science and Technology MISiS, Moscow, Russia
2Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
Email: solomatov.ls@misis.ru, sergey3e@gmail.com

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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.
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