Critical Phase-Transition Current in Niobium Nitride Thin Films
| Autor: | N. D. Kuz’michev, M. A. Vasyutin, D. A. Shilkin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Superconductivity Niobium nitride Materials science Condensed matter physics Relaxation (NMR) Electron Inelastic scattering Condensed Matter Physics 01 natural sciences Magnetic flux Electronic Optical and Magnetic Materials Magnetic field chemistry.chemical_compound chemistry Condensed Matter::Superconductivity 0103 physical sciences Quasiparticle 010306 general physics |
| Zdroj: | Physics of the Solid State. 60:2287-2290 |
| ISSN: | 1090-6460 1063-7834 |
| Popis: | —The effect of current and magnetic field on the transition to the superconducting state in niobium nitride thin films has been studied. The critical current dependences of the films on the temperature and magnetic field in the transition region have been determined. Within the framework of models of a normal domain and quasiparticle heating during viscous flow of a magnetic flux, the functional dependences of the critical current have been determined in close vicinity of the superconducting transition temperature. Using the theory of electron heating, we have determined the time of the electron energy relaxation. We also estimated the electron-phonon and the electron-electron inelastic scattering times, the diffusion coefficient of electrons, and heat transfer coefficient. |
| Databáze: | OpenAIRE |
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