Journal
SOLID STATE COMMUNICATIONS
Volume 151, Issue 19, Pages 1344-1348Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2011.06.022
Keywords
Ferroelectrics; Dielectric response; Optical properties
Categories
Funding
- National Natural Science Foundation of China [10904053]
- Jiangsu provincial Natural Science Foundation for colleges and universities [09KJB140002]
- Qing Lan Project
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Based on the phenomenological Landau-Devonshire theory, we investigate the film thickness dependence of ferroelectric and electro-optic properties of epitaxial BaTiO3 thin films grown on SrTiO3 and MgO substrates. By using the effective substrate lattice parameter concept, the film thickness dependence of misfit strain is incorporated into the theory. Therefore, the film thickness dependence of ferroelectric and electro-optic properties in epitaxial BaTiO3 thin films can be explained. Moreover, a large quadratic electro-optic effect was obtained in the BaTiO3 thin films, which is in good agreement with the experimental result of BaTiO3 thin films on the MgO substrate. (C) 2011 Elsevier Ltd. All rights reserved.
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