Polarity of translation boundaries in antiferroelectric PbZrO3

被引：24
|
作者：
Wei, Xian-Kui [1 ,2 ,3 ]
Jia, Chun-Lin [2 ,3 ,4 ]
Roleder, Krystian [5 ]
Setter, Nava [1 ]
机构：
[1] Swiss Fed Inst Technol, EPFL, Ceram Lab, CH-1015 Lausanne, Switzerland
[2] Res Ctr Julich, Peter Grunberg Inst, D-52425 Julich, Germany
[3] Res Ctr Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany
[4] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Peoples R China
[5] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 62卷
基金：
欧洲研究理事会; 瑞士国家科学基金会;
关键词：
Structural materials; Microstructure; Transmission electron microscopy (TEM); Defects; DOMAIN BOUNDARIES; CRYSTAL-STRUCTURE; X-RAY; WALLS;
D O I：
10.1016/j.materresbull.2014.11.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The polarity of translation boundaries (TBs) in antiferroelectric PbZrO3 is investigated. We show that previous experimentally reported polar property of RIII-1 type TB can be well approximated by a strain-free rigid model. Based on this, the modeling investigation suggests that there are two additional polar TBs, three antipolar-like TBs and one antipolar antiphase boundary. High-resolution scanning-transmission-electron-microscopy study reveals that the straight RIII-1 type TB can split into "sub-domains" with possible polarization reversal, suggesting the occurrence of ferroic orders at the TBs. In addition, dependence of morphology and density of the TBs on thermal treatments is discussed according to our results. (C) 2014 Published by Elsevier Ltd.
引用
收藏
页码：101 / 105
页数：5
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