Giant zero-biased flexible magnetoelectric laminate composites for wearable magnetic sensor

Flexible magnetoelectric (ME) laminate composites consist of polyvinylidene fluoride (PVDF) and nanocrystalline alloy (FeCuNbSiB) were prepared. The ME coupling properties under different bending angle (θ) at zero dc bias magnetic field (Hdc) were investigated. The experimental results demonstrate t...

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Bibliographic Details
Published in:Ceramics international 2018-11, Vol.44, p.S100-S103
Main Authors: He, Xingduo, Qiu, Jing, Long, Yibing, Chang, Qijie, Hu, Zhenwen, Liu, Huanbin, Hu, Wei, She, Yin, Tang, Xiaosheng
Format: Article
Language:English
Subjects:
Magnetoelectric composites
Wearable magnetic sensors
Zero-biased magnetoelectric effects
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Summary:Flexible magnetoelectric (ME) laminate composites consist of polyvinylidene fluoride (PVDF) and nanocrystalline alloy (FeCuNbSiB) were prepared. The ME coupling properties under different bending angle (θ) at zero dc bias magnetic field (Hdc) were investigated. The experimental results demonstrate the optimum zero-biased resonant ME voltage coefficient (MEVC) of ME laminate composites can reach 17.65 V/(cm·Oe). This is mainly due to the large permeability and low saturation magnetostrictive coefficient of the nanocrystalline alloy. The induced zero-biased ME voltages of ME laminate composites show an excellent linear relationship to ac magnetic field at bending states over a wide range. This laminate composite shows promising applications for high-sensitivity and small-size wearable magnetic sensors without bias.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2018.08.228