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Issue 11, 2025
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90th anniversary of the P.L. Kapitza Institute for Physical Problems RAS. Conferences and symposia


External factors acting on low-temperature conductivity of superconductor—insulator—normal metal—insulator—superconductor tunnel structures

†  a, ‡  b, §  a
a P.L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 119334, Russian Federation
b Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, ul. Mokhovaya 11, kor. 7, Moscow, 125009, Russian Federation

We review the most notable experiments conducted at the Institute for Physical Problems, Russian Academy of Sciences, in cooperation with the Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, on the effect that millimeter-wave irradiation, temperature T, and magnetic field B have on the conductivity of superconductor—insulator—normal metal—insulator—superconductor (SINIS) tunnel structures at temperatures TC and at low voltages, such that the single-electron current is comparable to or smaller than the subgap two-electron Andreev current. We find that, under irradiation with energy of quanta ħω ≫ kT, the normal-metal electron subsystem does not reach equilibrium. Under pulsed irradiation, the time constant of SINIS structures regarded as radiation detectors is estimated at the level of a few microseconds. The effect of a magnetic field on the single-electron and Andreev conductivity of SINIS structures is studied.

Fulltext pdf (881 KB)
Fulltext is also available at DOI: 10.3367/UFNe.2024.12.039844
Keywords: tunnel junctions, superconductor—insulator—normal metal—insulator—superconductor structures, Andreev current, millimeter-wave radiation detectors, electron temperature, electron—phonon interaction, Abrikosov vortex structures
PACS: 07.57.−c, 74.45.+c, 85.25.Pb (all)
DOI: 10.3367/UFNe.2024.12.039844
URL: https://ufn.ru/en/articles/2025/7/h/
2-s2.0-105013800061
2025PhyU...68..711L
Citation: Lemzyakov S A, Tarasov M, Edelman V S "External factors acting on low-temperature conductivity of superconductor—insulator—normal metal—insulator—superconductor tunnel structures" Phys. Usp. 68 711–716 (2025)
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18th, December 2024

Оригинал: Лемзяков С А, Тарасов М А, Эдельман В С «Влияние внешних воздействий на низкотемпературную проводимость туннельных структур сверхпроводник—изолятор—нормальный меалл—изолятор—сверхпроводник» УФН 195 759–765 (2025); DOI: 10.3367/UFNr.2024.12.039844

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