In situ transmission electron microscopy study of the electric field-induced transformation of incommensurate modulations in a Sn-modified lead zirconate titanate ceramic

被引：26

作者：

He, H ^{[1
]}

Tan, X ^{[1
]}

机构：

[1] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 15期

关键词：

D O I：

10.1063/1.1805179

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electric field-induced transformation of incommensurate modulations in a Sn-modified lead zirconate titanate ceramic was investigated with an electric field in situ transmission electron microscopy technique. It is found that the spacing between the (1/x){110} satellite spots and the fundamental reflections do not change with external electric field, indicating that the modulation wavelength stays constant under applied field. The intensity of these satellites starts to decrease when the field level reaches a critical value. Further increase in the field strength eventually leads to the complete disappearance of the satellite reflections. In addition, the if 1/2{111}-type superlattice reflections showed no response to electrical stimuli. (C) 2004 American Institute of Physics.

引用

页码：3187 / 3189

页数：3

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