A phenomenological thermodynamic potential for BaTiO3 single crystals -: art. no. 064101

被引：390

作者：

Li, YL ^{[1
]}

Cross, LE

Chen, LQ

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

[3] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2042528

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A phenomenological thermodynamic potential was constructed based on the properties of bulk BaTiO3 single crystals. An eighth-order polynomial of Landau-Devonshire expansion was employed. It reproduces bulk properties including the three possible ferroelectric transition temperatures and their dependence on electric fields, as well as the dielectric and piezoelectric constants. Different from the existing thermodynamic potential, it is applicable to predicting the ferroelectric phase transitions and properties of BaTiO3 thin films under large compressive biaxial strains. (c) 2005 American Institute of Physics.

引用

页数：4

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