Size-dependent magnetoelectric response of (Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3)-(Ni0.8Zn0.2)Fe2O4 particulate composites

被引：13

作者：

Liu, Sheng ^{[1
]}

Yan, Shuoqing ^{[1
]}

Luo, Heng ^{[1
]}

He, Longhui ^{[1
]}

He, Jun ^{[1
]}

Hu, Zhaowen ^{[1
]}

Huang, Shengxiang ^{[1
]}

Deng, Lianwen ^{[1
]}

机构：

[1] Cent S Univ, Sch Phys & Elect, Inst Super Microstruct & Ultrafast Proc Adv Mat, Changsha 410083, Hunan, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 04期

关键词：

Magnetoelectricity; Particulate composite; Size-dependence; Magnetization; DOMAIN SIZE;

D O I：

10.1016/j.ceramint.2017.11.151

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, we investigated the effect of magnetic grain size on magnetoelectric responses of particulate magnetoelectric 0.7(Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3)-0.3(Ni0.8Zn0.2)Fe2O4 (BNKT-NZFO) composites. The coexistence of two chemically separated phases was confirmed using x-ray diffraction analysis. The composites had homogeneous microstructure with controlled grain size. The magnetoelectric response of the BNKT-NZFO composites sensitively depended on the grain size of the NZFO phase and the magnetoelectric voltage coefficients presented a marked enhancement of 33% in the engineered grain size range. This result indicated that tailoring the magnetic grain size physically will provide a powerful mean of enhancing magnetoelectric coupling in a two-phase particulate composite, with large potential application in area of magnetic field sensor.

引用

页码：3712 / 3717

页数：6

共 32 条

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