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Progress in magnetoelectric devices based on ferroelectric/ferromagnetic composites

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SEMINAR 

Artificial Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences

人工晶体研究中心

Progress in magnetoelectric devices based on ferroelectric/ferromagnetic composites 

报告人:董蜀湘 北京大学 

时间:2016年9月5日(周一)下午14:00 

地点:嘉定园区1号楼 218会议室 

  联系人:罗豪甦(021-69987760) 

  报告内容:Magnetoelectric (ME) effect is a magnetic field-to-electric field interaction coupling via elastic strain mediated in layered ferroelectric and ferromagnetic multiferroic heterostructure composite materials. The coexistence of electric polarization and magnetization in multiferroic materials provides great opportunities for building various magnetoelectric devices. Currently, the strongest ME coupling effect is observed from ferroelectric and ferromagnetic composites is piezoelectric/piezomagnetic layered laminates. This presentation reviews current progress in ME devices based on piezoelectric/piezomagnetic laminated composites. ME devices are mainly utilized as high-sensitivity magnetic sensors, current sensors, transformers and gyrators, microwave devices, tunable inductors and filters, energy harvesters, ME actuators, and ME memories, et al. Especially, we will introduce our recent progress on magnetoelectric magnetic sensors with sub-picoTesla sensitivity and their sensors array for magnetic metal object imaging, which is believed in a safe method to human body. The working principle and properties of ME sensors and array are introduced, and their future development are also discussed in this review paper. 

 
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