Self-biased magnetoelectric responses in magnetostrictive/piezoelectric composites with different high-permeability alloys

• Published in: Chinese physics B 2014-11, Vol.23 (11), p.527-531
• Main Author: 鲁彩江 李平 文玉梅 杨爱超 杨超 王德才 何伟 张吉涛
• Format: Article
• Language: English
• Subjects: Alloys; Amorphous alloys; FeCuNbSiB; FeSiB; Grading; Hysteresis; Lead zirconate titanates; Magnetostriction; Metallic glasses; Nickel; Piezoelectricity; 压电复合材料; 磁响应; 磁致伸缩; 自偏置; 铁基纳米晶合金; 高磁导率合金
• ISSN: 1674-1056; 2058-3834; 1741-4199
• DOI: 10.1088/1674-1056/23/11/117503

We comparatively investigate the influence of various high-permeability alloys on the hysteretic and remanent res- onant magnetoelectric （ME） response in a composite of magnetostrictive nickel （Ni） and piezoelectric Pb（Zrl_x, Tix）O3 （PZT）. In order to implement this comparative research, Co-based amorphous alloy （CoSiB）, Fe-based nanocrystalline alloy （FeCuNbSiB） and Fe-based amorphous alloy （FeSiB） are used according to different magnetostriction （2s） and saturation magnetization （μtoMs） characteristics. The bending and longitudinal resonant ME voltage coefficients （αME,b and αME,1） are observed comparatively for CoSiB/Ni/PZT, FeCuNbSiB/Ni/PZT, and FeSiB/Ni/PZT composites. The experimental data indicate that the FeSiB/Ni/PZT composite has the largest remanent self-biased aME,b and aME,1 due to the largest magnetic grading of λs and μ0Ms in the FeSiB/Ni layer. When the number of FeSiB foils is four, the maximum remanent aME,b and aME,I at zero bias magnetic field are 57.8 V/cm·Oe and 107.6 V/cm·Oe, respectively. It is recommended that the high-permeability alloy is supposed to have larger λs and μ0Ms for obtaining a larger remanent self-biased ME responses in ME composite with high-permeability alloy.