TY  - JOUR
AU  - Skoromets, V.
AU  - Kadlec, C.
AU  - Kuzel, K.
AU  - Kamba, S.
AU  - Schubert, J.
TI  - Electric field tuning of hard polar phonons in strained SrTiO3 films
JO  - Journal of applied physics
VL  - 107
SN  - 0021-8979
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PreJuSER-10420
SP  - 124116
PY  - 2010
N1  - This work was supported by the Academy of Sciences of the Czech Republic (Project No. AVOZ10100520), by its Grant Agency (Project No. A100100907), and by the Czech Science Foundation (Project No. 202/09/0682).
AB  - 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. (c) 2010 American Institute of Physics. [doi: 10.1063/1.3447812]
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000279993900117
DO  - DOI:10.1063/1.3447812
UR  - https://juser.fz-juelich.de/record/10420
ER  -