Film thickness dependence of electro-optic effect in epitaxial BaTiO3 thin films

被引：11
|
作者：
Qiu, J. H. [1 ,2 ]
Ding, J. N. [1 ,2 ]
Yuan, N. Y. [2 ]
Wang, X. Q. [2 ]
Zhou, Y. [2 ]
机构：
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Changzhou Univ, Ctr Low Dimens Mat Micronano Devices & Syst, Changzhou 213164, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2011年 / 151卷 / 19期
基金：
中国国家自然科学基金;
关键词：
Ferroelectrics; Dielectric response; Optical properties; STRUCTURAL CHARACTERISTICS; HETEROSTRUCTURES; FERROELECTRICS; DEPOSITION; CRYSTALS;
D O I：
10.1016/j.ssc.2011.06.022
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
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.
引用
收藏
页码：1344 / 1348
页数：5
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