Počet záznamů: 1
Terahertz thermal spectroscopy of a NbN superconductor
- 1.0367191 - FZÚ 2012 RIV US eng J - Článek v odborném periodiku
Tesař, Roman - Šindler, Michal - Il'in, K. - Koláček, Jan - Siegel, M. - Skrbek, L.
Terahertz thermal spectroscopy of a NbN superconductor.
Physical Review. B. Roč. 84, č. 13 (2011), 132506/1-132506/4. ISSN 1098-0121. E-ISSN 2469-9969
Grant CEP: GA ČR(CZ) GAP204/11/0015; GA MŠMT(CZ) ME10069
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: response to electromagnetic fields * optical properties * superconducting films * low-dimensional structures
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 3.691, rok: 2011
We report far-infrared optical properties of a NbN superconductor. Transmission through a high-quality NbN film grown on a birefringent sapphire substrate above and below its superconducting transition down to the zero-temperature limit is measured at six different frequencies from 0.4 to 2.5 THz both above and below its optical gap. The experimental results agree with theoretical calculations developed based on utilization and extension of the BCS model of Zimmermann et al. [Physica C 183, 99 (1991)] applied for the NbN film. Full quantitative agreement over the entire ranges of temperature and frequencies is found based solely on the physical properties of this NbN film sample and on the parameters of an identical sapphire substrate as measured in time-domain spectroscopy experiments, without use of any additional fitting parameters.
Trvalý link: http://hdl.handle.net/11104/0201944
Počet záznamů: 1