Dependence of dielectric properties of 0.9Pb(Mg1/3Nb2/3 )O3-0.1PbTiO3 crystals on the crystallographic orientation and external electric field

被引：3
作者：
Song, P
Wang, HX
Luo, HS
机构：
[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 201800, Peoples R China
[2] Qinghai Inst Natl, Dept Chem, Xining 810007, Peoples R China
[3] Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
来源：
FERROELECTRICS | 2005年 / 322卷
基金：
中国国家自然科学基金;
关键词：
relaxor ferroelectrics; PMNT single crystals; DC bias field; electric permittivity;
D O I：
10.1080/00150190500313090
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The orientation dependences of electric field effect on dielectric behaviors of relaxor-based 0.9PMN-0.1PT crystal were revealed by examining the biased dielectric properties. The relaxor states extend at the range from 10 degrees C to 80 degrees C under zero dc bias field with different frequencies, but DC bias field could modulate the domain states and induce a stable ferroelectric macrodomain state apparently in the < 001 >-orientated crystal under 300 V/mm electric field. The electric permittivity of the poled crystals disclosed the existence of the transformation between microdomain state with randomly distributed dipoles and metastable ferroelectric state with dipoles partially oriented.
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收藏
页码：39 / 43
页数：5
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