Superconductor-insulator transition in a NbN film under in-plane magnetic field

0566175 - FZÚ 2023 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Kadlec, Christelle - Kadlec, Filip - Šindler, Michal
Superconductor-insulator transition in a NbN film under in-plane magnetic field.
International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) /47./. New York: IEEE, 2022, č. článku 9895838. ISBN 978-1-7281-9427-1. ISSN 2162-2027.
[International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) /47./. Delft (NL), 28.08.2022-02.09.2022]
Grant CEP: GA ČR(CZ) GA21-11089S
Institucionální podpora: RVO:68378271
Klíčová slova: superconductivity * terahertz time-domain spectroscopy * NbN * superconductor-insulator transition
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
https://ieeexplore.ieee.org/document/9895838

The complex conductivity of an ultrathin superconducting NbN film was investigated by terahertz time-domain spectroscopy under an in-plane magnetic field. Simultaneous use of Maxwell-Garnett effective medium theory and the model of optical conductivity by Herman and Hlubina [Phys. Rev. B 96, 014509 (2017)] assuming linear dependence of pair-breaking scattering rate on the magnetic field proved to correctly reproduce the terahertz spectra obtained experimentally in a magnetic field of up to 7 T.

Trvalý link: https://hdl.handle.net/11104/0337601