Effects of Bi-Substitution on Dielectric and Ferroelectric Properties of Yttrium Iron Garnet Ceramics

被引：4
|
作者：
Wu, Y. J. [1 ,2 ]
Zhang, T. [1 ,2 ]
Li, J. [3 ]
Chen, X. M. [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Lab Dielect Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Zhejiang, Peoples R China
[3] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310006, Zhejiang, Peoples R China
来源：
FERROELECTRICS | 2014年 / 458卷 / 01期
基金：
美国国家科学基金会;
关键词：
Dielectric properties; ferroelectric properties; yttrium iron garnet; ELECTRICAL-PROPERTIES;
D O I：
10.1080/00150193.2013.849963
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dielectric and ferroelectric properties of Y3-xBixFe5O12 ceramics were extensively investigated. All the samples show a low temperature dielectric relaxation which originates from the charge carrier hopping between Fe2+ and Fe3+ and a high temperature dielectric relaxation which is associated with conduction. The dielectric constant, dielectric loss and the activation energy of the hopping process between Fe2+ and Fe3+ of Y3-xBixFe5O12 ceramics decrease with increasing Bi substitution. The conductivity decreases and the remanent polarization increases as the amount of Bi increases.
引用
收藏
页码：25 / 30
页数：6
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