CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Giant low-frequency magnetoelectric torque (MET) effect in polyvinylidene-fluoride (PVDF)-based MET device |
Chun-Lei Zheng(郑春蕾)1,2,3, Yi-Wei Liu(刘宜伟)1,2, Qing-Feng Zhan(詹清峰)1,2, Yuan-Zhao Wu(巫远招)1,2, Run-Wei Li(李润伟)1,2 |
1 Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; 2 Zhejiang Provincial Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; 3 Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China |
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Abstract A polyvinylidene-fluoride (PVDF)-based magnetoelectric torque (MET) device is designed with elastic layer sandwiched by PVDF layers, and low-frequency MET effect is carefully studied. It is found that elastic modulus and thickness of the elastic layer have great influences on magnetoelectric (ME) voltage coefficient (αME) and working range of frequency in PVDF-based MET device. The decrease of the modulus and thickness can help increase the αME. However, it can also reduce the working range in the low frequency. By optimizing the parameters, the giant αME of 320 V/cm·Oe (1 Oe=79.5775 A·m-1) at low frequency (1 Hz) can be obtained. The present results may help design PVDF-based MET low-frequency magnetic sensor with improved magnetic sensitivity in a relative large frequency range.
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Received: 30 December 2016
Revised: 07 March 2017
Accepted manuscript online:
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PACS:
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77.65.Ly
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(Strain-induced piezoelectric fields)
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07.07.Df
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(Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)
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75.80.+q
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(Magnetomechanical effects, magnetostriction)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51525103, 51522105, and 11304326), the National Key Technology Research and Development Program of China (Grant No. 2016YFA0201102), Ningbo Municipal Science and Technology Innovation Team, China (Grant No. 2015B11001), and the Ningbo Municipal Major Science and Technology Projects, China (Grant No. 2015B11027). |
Corresponding Authors:
Yi-Wei Liu, Run-Wei Li
E-mail: liuyw@nimte.ac.cn;runweili@nimte.ac.cn
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Cite this article:
Chun-Lei Zheng(郑春蕾), Yi-Wei Liu(刘宜伟), Qing-Feng Zhan(詹清峰), Yuan-Zhao Wu(巫远招), Run-Wei Li(李润伟) Giant low-frequency magnetoelectric torque (MET) effect in polyvinylidene-fluoride (PVDF)-based MET device 2017 Chin. Phys. B 26 067703
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