Electric-field-induced phase switching in the lead free piezoelectric potassium sodium bismuth titanate

被引：73

作者：

Royles, A. J. ^{[1
]}

Bell, A. J. ^{[1
]}

Jephcoat, A. P. ^{[2
]}

Kleppe, A. K. ^{[2
]}

Milne, S. J. ^{[1
]}

Comyn, T. P. ^{[1
]}

机构：

[1] Univ Leeds, Inst Mat Res, Sch Proc Environm & Mat Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Diamond Light Source, Didcot OX11 0DE, Oxon, England

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

X-RAY; BEHAVIOR; TRANSITION; TRANSFORMATION; SEQUENCE;

D O I：

10.1063/1.3490235

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-energy synchrotron radiation has been used to demonstrate an electric-field-induced phase transformation in the ceramic xK(1/2)Bi(1/2)TiO(3)-(1-x)Na1/2Bi1/2TiO3, x=0.2. Application of an electric field >= 2 kV mm(-1) leads to a transformation from single phase rhombohedral to a mixture of tetragonal and rhombohedral phases. The texturing of the tetragonal phase increases with field strength. The electric-field-induced transformation suggests an excursion into the morphotropic phase boundary in this system. The compositions x=0.1 and 0.3 reveal rhombohedral and tetragonal symmetry, respectively, both before and after the application of an electric field. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3490235]

引用

页数：3

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