Unusual relaxor-normal ferroelectric crossover in Cu-doped BiFeO3-BaTiO3 ceramics

被引：7

作者：

Cao, Lei ^{[1
]}

Zhou, Changrong ^{[1
]}

Fan, Qiaolan ^{[1
]}

Zeng, Weidong ^{[1
]}

Zhou, Qin ^{[1
]}

Yang, Huabin ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Guangxi, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2015年 / 26卷 / 06期

关键词：

PIEZOELECTRIC PROPERTIES; TRANSITION; ORIGIN;

D O I：

10.1007/s10854-015-2875-9

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：

The structural origin of relaxor behavior in perovskite ferroelectrics has remained elusive for decades. In this study, we observed a unique thermally driven normal to ferroelectric phase transition and Cu-doping induced relaxor to normal ferroelectric transition in 0.70BiFeO(3)-0.30BaTiO(3) + x wt%CuO (x = 0.1, 0.2, 0.4, 0.6 and 0.8) ceramics. The XRD results show that Cu-doping induces a structural transition from pseudo-cubic phase to rhombohedral phase, associated with the domain switch from nanodomains to macrodomains, might be the origin of the relaxor-normal ferroelectric phase transition.

引用

页码：3610 / 3614

页数：5

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