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Heating of electrons in superconductor in the resistive state due to electromagnetic radiation

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
50
Issue
3
Identifiers
DOI: 10.1016/0038-1098(84)90797-x
Disciplines
  • Physics

Abstract

Abstract The effect of heating electrons with respect to phonons in a thin superconducting film driven into the resistive state by the current and the external magnetic field has been observed and investigated. This effect caused by the electromagnetic radiation is manifested in the increased resistance of the film and is not selective over the frequency range from 10 10 to 10 15 Hz. That the effect is frequency independent under the conditions of strong electron scattering caused by static defects is explained by the decisive role of electron -electron collisions in forming the distribution function. The characteristic time of resistance change, obtained experimentally, corresponds to the relaxation time of the order parameter τ Δ near the superconducting transition and to the relaxation time of the nonelastic electron-phonon interaction τ eph at lower temperatures and in lower magnetic fields.

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