Dynamic conductivity and the coherence peak in the submillimeter spectra of superconducting NbN films

Autor: G. V. Kozlov, I.V. Fedorov, Boris Gorshunov, A. A. Volkov, A. D. Semenov
Rok vydání: 1993
Předmět:
Zdroj: Solid State Communications. 87:17-21
ISSN: 0038-1098
DOI: 10.1016/0038-1098(93)90528-u
Popis: A new technique is developed for measurement of electrodynamic parameters of superconducting films in the submillimeter wavelength range. In the frequency range 5–39 cm −1 at temperatures 5–300 K, the first detailed measurements of the temperature and frequency dependences of dynamic conductivity and dielectric permittivity of superconducting NbN films are performed. A coherence peak is discovered in the temperature dependence of dynamic conductivity of NbN films.
Databáze: OpenAIRE