B. A. Gurovich, B. V. Goncharov, K. E. Prikhod'ko, L. V. Kutuzov, D. A. Goncharova, “Modeling of thermal processes in a multilayer logic nanoelement consisting of NbN nanowires located in various functional layers and separated by a layer of Al$_2$O$_3$ dielectric”, Fizika Tverdogo Tela, 2023, Volume 65, Issue 7,Pages 1211

XXVII International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 13-16, 2023
Thermal properties

Modeling of thermal processes in a multilayer logic nanoelement consisting of NbN nanowires located in various functional layers and separated by a layer of Al$_2$O$_3$ dielectric

B. A. Gurovich^a, B. V. Goncharov^a, K. E. Prikhod'ko^ab, L. V. Kutuzov^a, D. A. Goncharova^a

^a National Research Centre "Kurchatov Institute", Moscow, Russia
^b National Engineering Physics Institute "MEPhI", Moscow, Russia

Abstract: A simulation of the temperature distribution in a three-layer functional nanoelement consisting of NbN nanowires separated by layers of Al$_2$O$_3$ 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 $\approx$ 0.9 from the $I_c$ 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 $I_c$ on temperature.

Keywords: thin superconducting NbN films, functional superconducting nanoelements from NbN, modeling of thermal processes.

Received: 17.04.2023
Revised: 17.04.2023
Accepted: 11.05.2023

DOI: 10.21883/FTT.2023.07.55846.33H