Large enhancement of the piezoelectric response in perovskite crystals by electric bias field antiparallel to polarization

被引：29

作者：

Budimir, M ^{[1
]}

Damjanovic, D ^{[1
]}

Setter, N ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, EPFL, Mat Inst, Ceram Lab, CH-1015 Lausanne, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 14期

关键词：

D O I：

10.1063/1.1799231

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using Landau-Ginzburg-Devonshire theory and tetragonal BaTiO3 as an example, this letter demonstrates that strong electric bias fields applied antiparallel to spontaneous polarization may lead to a large enhancement of piezoelectric properties in monodomain perovskite crystals with multiple phase transitions. At temperatures close to tetragonal-orthorhombic phase transition, the largest enhancement is approximately along the [111] axis. The enhancement is due to the field induced dielectric softening of the crystal. (C) 2004 American Institute of Physics.

引用

页码：2890 / 2892

页数：3

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