Enhanced ferroelectric and ferromagnetic properties of Er-modified BiFeO3-BaTiO3 lead-free multiferroic ceramics

被引：13

作者：

Guo, Yongquan ^{[1
]}

Wang, Tao ^{[1
]}

He, Lihua ^{[1
]}

Zheng, Qiaoji ^{[1
]}

Liao, Jie ^{[1
]}

Xu, Chenggang ^{[1
]}

Lin, Dunmin ^{[1
]}

机构：

[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610066, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 06期

关键词：

DOPED BIFEO3 NANOPARTICLES; HIGH-TEMPERATURE CERAMICS; PIEZOELECTRIC PROPERTIES; MN; BA;

D O I：

10.1007/s10854-016-4487-4

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Lead-free multiferroic ceramics of 0.75Bi(1-x)Er(x)FeO(3)-0.25BaTiO(3) + 1 mol% MnO2 were synthesized by a conventional ceramic technique, and their structure, piezoelectric, ferroelectric and ferromagnetic properties were investigated. All the ceramics possess a perovskite structure. The crystal structure of the ceramics is transformed from rhombohedral to orthorhombic phase with increasing x. The ceramics with x = 0.125-0.15 exhibit good electric insulation (R = 2.75-2.83 x 10(10) Omega cm) and strong ferroelectricity (P-r = 13.4-14.2 mu C cm(-2)). The remanent magnetism M-r and saturated magnetization M-s of the ceramics are greatly improved by 380 and 722 % with increasing x from 0 to 0.15, respectively. The present materials exhibit strong ferroelectricity, considerable improved ferromagnetism and relatively good piezoelectricity, suggesting potential applications in advanced multiferroic devices.

引用

页码：5741 / 5747

页数：7

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