Aging effect evolution during ferroelectric-ferroelectric phase transition: A mechanism study

被引：18
|
作者：
Feng, Zuyong [1 ,2 ]
Cheng, Zhenxiang [1 ]
Shi, Dongqi [1 ]
Dou, Shixue [1 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, North Wollongong, NSW 2500, Australia
[2] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
AIP ADVANCES | 2013年 / 3卷 / 06期
基金：
澳大利亚研究理事会;
关键词：
CERAMICS; CRYSTALS;
D O I：
10.1063/1.4811168
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Aging can significantly modify the dielectric, piezoelectric, and ferroelectric performance of ferroelectrics. However, little attention has been paid to the aging effect during ferroelectric-ferroelectric phase transitions that is essentially correlated with real applications. In this letter, the authors report the aging effect evolution between two ferroelectric phases in an acceptor-doped piezoceramics. The results show that aging-induced double hysteresis loops were exhibited in different ferroelectric phases, but disappeared during ferroelectric-ferroelectric phase transitions, suggesting the mechanism that the intrinsic restoring force for the reversible switching of domains caused by the alignment of defect dipoles was weakened due to ferroelectric dipole reorientation. (C) 2013 Author(s).
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页数：7
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