Electric-field-induced monoclinic phase in (Ba,Sr)TiO{sub 3} thin film

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3573516· OSTI ID:21538228

Anokhin, A S ^[1]; Yuzyuk, Yu I ^[2]; Golovko, Yu I; Mukhortov, V M ^[1]; El Marssi, M ^[3]

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1. Southern Scientific Center RAS, 41 Chekhov str., Rostov-on-Don, 344006 (Russian Federation)
2. Faculty of Physics, Southern Federal University, 5 Zorge str., Rostov-on-Don, 344090 (Russian Federation)
3. Universite de Picardie Jules Verne, LPMC, 33 rue Saint-Leu, F-80039 Amiens (France)

We have studied electric-field-induced symmetry lowering in the tetragonal (001)-oriented heteroepitaxial (Ba{sub 0.8}Sr{sub 0.2})TiO{sub 3} thin film deposited on (001)MgO substrate. Polarized micro-Raman spectra were recorded from the film area in between two planar electrodes deposited on the film surface. Presence of c domains with polarization normal to the substrate was confirmed from polarized Raman study under zero field, while splitting and hardening of the E(TO) soft mode and polarization changes in the Raman spectra suggest monoclinic symmetry under external electric field.

• OSTI ID: 21538228
• Journal Information: Journal of Applied Physics, Vol. 109, Issue 7; Other Information: DOI: 10.1063/1.3573516; (c) 2011 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
DEPOSITION
ELECTRIC FIELDS
ELECTROCHEMISTRY
ELECTRODES
EPITAXY
FERROELECTRIC MATERIALS
LAYERS
MAGNESIUM OXIDES
MONOCLINIC LATTICES
POLARIZATION
RAMAN SPECTRA
SPUTTERING
STRONTIUM COMPOUNDS
SUBSTRATES
SURFACES
SYMMETRY
THIN FILMS
TITANATES
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHEMISTRY
CRYSTAL GROWTH METHODS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIELECTRIC MATERIALS
FILMS
MAGNESIUM COMPOUNDS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
SPECTRA
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS