Terahertz dielectric properties of KTaO.sub.3./sub. crystal: electric-field tunability, comparison with SrTiO.sub.3./sub.

0486549 - FZÚ 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Skoromets, Volodymyr - Kadlec, Christelle - Němec, Hynek - Kužel, Petr
Terahertz dielectric properties of KTaO₃ crystal: electric-field tunability, comparison with SrTiO₃.
Proceedings of the 41st International Conference on Infrared, Millimeter and Terahertz Waves - IRMMW-THz 2016. New York: IEEE, 2016, s. 1-2, č. článku 7758799. Volume 2016. ISBN 978-146738485-8. ISSN 2162-2027.
[41st International Conference on Infrared, Millimeter and Terahertz Waves. Copenhagen (DK), 25.09.2016-30.09.2016]
Institucionální podpora: RVO:68378271
Klíčová slova: terahertz spectroscopy * SrTiO₃
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)

We used time-domain terahertz spectroscopy to study the dielectric properties of a KTaO3 crystal upon applied electric field at temperatures from 40 to 250 K. Tunable ferroelectrics are promising for the control of terahertz radiation and their study enables deeper understanding of structural instabilities close to phase transition.
Trvalý link: http://hdl.handle.net/11104/0281322