Monoclinic MC phase in (001) field cooled BaTiO3 single crystals

被引：23

作者：

Cao, Hu ^{[1
]}

Devreugd, Christopher P. ^{[1
]}

Ge, Wenwei ^{[1
]}

Li, Jiefang ^{[1
]}

Viehland, D. ^{[1
]}

Luo, Haosu ^{[2
]}

Zhao, Xiangyong ^{[2
]}

机构：

[1] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA

[2] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 210009, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 03期

关键词：

barium compounds; crystal structure; ferroelectric materials; piezoelectric materials; piezoelectricity; X-ray diffraction; POLARIZATION ROTATION; 1ST PRINCIPLES; BEHAVIOR; PIEZOELECTRICS;

D O I：

10.1063/1.3073716

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report here the finding of a new phase in BaTiO3 single crystals. High precision x-ray diffraction investigations of (001) field cooled crystals have shown the presence of a monoclinic M-C phase for temperatures below 300 K. This M-C phase is shown to be stable upon removal of the electric field. The results demonstrate the presence of structurally bridging low symmetry phases that lie between tetragonal and rhombohedral ones in this classic perovskite system: indicating a means to achieve high piezoelectricity in Pb-free systems via domain engineering.

引用

页数：3

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