Effect of the nanopore on ferroelectric domain structures and switching properties

被引：10
|
作者：
Zhao, He [1 ]
Wu, Pingping [1 ]
Du, Lifei [2 ]
Du, Huiling [2 ]
机构：
[1] Xiamen Inst Technol, Dept Mat Sci & Engn, Xiamen 361021, Fujian, Peoples R China
[2] Xian Univ Sci & Technol, Coll Mat Sci & Engn, Xian 710054, Shaanxi, Peoples R China
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2018年 / 148卷
基金：
中国国家自然科学基金;
关键词：
Nanopore; Domain structure; Switching properties; Ferroelectrics; Phase field model; POROUS PZT CERAMICS; PIEZOELECTRIC PROPERTIES; WALL MOTION; THIN-FILMS; PORE-SIZE; POROSITY; SIMULATION; BEHAVIOR; PIEZO; MODEL;
D O I：
10.1016/j.commatsci.2018.02.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous ferroelectrics have some special properties and features for specific promising applications. The nanopores structure have been observed in experiments may have great influence on the ferroelectric domain structures and the switching properties of ferroelectrics. In this study, we proposed a phase field model to predict the domain structures of porous ferroelectrics and their evolution under a switching electric field. The effects of the pores size/shape on domain structure, switching properties, and dielectric/piezoelectric properties are investigated and analyzed. The simulated hysteresis loop is in good agreement with experimental reports. It is shown that the porosity can strongly affect the ferroelectric domain size, and furthermore, will influence the hysteresis loop. Therefore controlling the porosity of ferroelectrics may provide a possible way to adjust the properties of porous ferroelectric materials. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：216 / 223
页数：8
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