Počet záznamů: 1
Electric field tuning of hard polar phonons in strained SrTiO.sub.3./sub. films
- 1.0352348 - FZÚ 2011 RIV US eng J - Článek v odborném periodiku
Skoromets, Volodymyr - Kadlec, Christelle - Kužel, Petr - Kamba, Stanislav - Schubert, J.
Electric field tuning of hard polar phonons in strained SrTiO3 films.
Journal of Applied Physics. Roč. 107, č. 12 (2010), 124116/1-124116/4. ISSN 0021-8979. E-ISSN 1089-7550
Grant CEP: GA AV ČR(CZ) IAA100100907; GA ČR(CZ) GA202/09/0682
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: phonons * ferroelectricity * SrTiO3
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.064, rok: 2010
We investigate 100 nm thick epitaxial monolayer of SrTiO3 strained by 1% in biaxial tension and grown on (110) DyScO3. Spectra within the whole far-infrared spectral range are obtained as a function of temperature and an electric bias. An appreciable tunability of high frequency polar phonons is observed upon bias. The splitting of TO4 mode clearly observed below 220 K, which is further increased upon bias, is a signature of the ferroelectricity of the film at these temperatures.
Trvalý link: http://hdl.handle.net/11104/0191873
Počet záznamů: 1