Multiferroic properties and exchange bias in Bi1-xSrxFeO3 （x = 0-0.6） ceramics

Multiferroic properties and exchange bias （EB） in Bi1-xSrxFeO3 （x = 0-0.6） ceramics synthesized by a modified Pechini method are investigated. Sr concentration dependence of structure distorting, ferroelectric properties, and dielectric properties were studied at room temperature. Appropriate Sr dop...

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Published in中国物理B：英文版 no. 9; pp. 446 - 450
Main Author 马争争 李建青 陈子鹏 田召明 胡晓军 黄海军
Format Journal Article
LanguageEnglish
Published 2014
Subjects
BiFeO3
Pechini法
交换偏置
介电特性
铁电特性
锶掺杂
陶瓷
高介电常数
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ISSN1674-1056
2058-3834

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Summary:Multiferroic properties and exchange bias （EB） in Bi1-xSrxFeO3 （x = 0-0.6） ceramics synthesized by a modified Pechini method are investigated. Sr concentration dependence of structure distorting, ferroelectric properties, and dielectric properties were studied at room temperature. Appropriate Sr doping （x = 0.05-0.2） has been found to decrease the conductivity, enhance ferroelectric properties and give rise to high dielectric constant. Compared with antiferromagnetic BiFeO3 compound, BSFO-x （O≤x ≤0.4） ceramics show weak ferromagnetism at room temperature, and their exchange bias field and vertical magnetization shift are observed and exhibit a strong dependence on the content of Sr. This observed EB effect which keeps stable in BSFO ceramics at 10 K tend to vanish at room temperature with Sr concentration over 0.4.
Bibliography:Multiferroic properties and exchange bias （EB） in Bi1-xSrxFeO3 （x = 0-0.6） ceramics synthesized by a modified Pechini method are investigated. Sr concentration dependence of structure distorting, ferroelectric properties, and dielectric properties were studied at room temperature. Appropriate Sr doping （x = 0.05-0.2） has been found to decrease the conductivity, enhance ferroelectric properties and give rise to high dielectric constant. Compared with antiferromagnetic BiFeO3 compound, BSFO-x （O≤x ≤0.4） ceramics show weak ferromagnetism at room temperature, and their exchange bias field and vertical magnetization shift are observed and exhibit a strong dependence on the content of Sr. This observed EB effect which keeps stable in BSFO ceramics at 10 K tend to vanish at room temperature with Sr concentration over 0.4.
11-5639/O4
multiferroic properties, ferroelectric properties, magnetic exchange bias, ferromagnetic properties
Ma Zheng-Zheng, Li Jian-Qing, Chen Zi-Peng, Tian Zhao-Ming, Hu Xiao-Jun, Huang Hai-Jun（1.Wuhan University of Technology, Wuhan 430070, China; 2. Huazhong University of Science and Technology, Wuhan 430074, China）
ISSN:1674-1056
2058-3834