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

被引：12
|
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
收藏
页码：3712 / 3717
页数：6
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