Effect of gradient stress on the dielectric constant of BaTiO3 film

被引：0

作者：

Li, Li-Ben ^{[1
]}

Chen, Qing-Dong ^{[1
]}

Li, Xin-Zhong ^{[1
]}

Zhen, Zhi-Qiang ^{[1
]}

Hu, Zhi-Xiang ^{[1
]}

机构：

[1] School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471003, China

来源：

Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2010年 / 44卷 / 05期

关键词：

Permittivity - Polarization - Barium titanate - Temperature distribution;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A set of gradient stress was obtained by solving the elastic mechanical equations and used to Landau thermodynamic theory to explain the diffuse dielectric anomaly of BaTiO3 film grown on a tensile substrate. The results predict that a-and aa-phase may coexist in the film. The hysteretic spontaneous polarization behavior of the film can not be revealed for the in-plane polarization exists for the two phases. The temperature dependence of out-plane dielectric constant agrees with the experimental result.

引用

页码：655 / 658

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