Modeling of thermal processes in a multilayer logic nanoelement consisting of NbN nanowires located in various functional layers and separated by a layer of Al2O3 dielectric
Gurovich B. A.1, Goncharov B. V.1, Prikhodko K. E.1,2, Kutuzov L. V.1, Goncharova D. A.1
1National Research Center “Kurchatov Institute”, Moscow, Russia
2National Research Nuclear University “MEPhI”, Moscow, Russia
Email: goncharov_bv@nrcki.ru

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A simulation of the temperature distribution in a three-layer functional nanoelement consisting of NbN nanowires separated by layers of Al2O3 has been performed. A nanowire with a built-in area of normal metal is located in the middle layer of the device. The simulation is performed for all three wires included in the device. A constant current of ~0.9 from the Ic was passed through each of the wires. The time of transition of the upper nanowire to the normal state as a result of heating is estimated, taking into account its gradual warming up and the dependence of Ic on temperature. Keywords: thin superconducting NbN films, functional superconducting nanoelements from NbN, modeling of thermal processes. DOI: 10.61011/PSS.2023.07.56407.33H
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