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Sensing of ultra-low magnetic field by magnetoelectric (ME) composites

자기-전기(ME) 복합체를 활용한 초미세 자기장 감지 기술

  • Received : 2020.02.24
  • Accepted : 2020.03.17
  • Published : 2020.03.31

Abstract

Magnetoelectric (ME) composites composed of magnetostrictive and piezoelectric materials derive interfacial coupling of magnetoelectric conversion between magnetic and electric properties, thus enabling to detect ultra-low magnetic field. To improve the performance of ME composite sensors, various research teams have explored adopting highly efficient magnetostrictive and piezoelectric phases, tailoring of device geometry/structure, and developing signal process technique. As a result, latest ME composites have achieved not only outstanding ME conversion coefficient but also sensing of ultra-low magnetic field below 1pT. This article reviews the recent research trend of ME composites for sensing of ultra-low magnetic field.

Keywords

References

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