Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Enhancement of the Magnetic Flux in Metglas/PZT-Magnetoelectric Integrated 2D Geomagnetic Device

  • Huong Giang, D.T. (Department of Nano Magnetic Materials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University) ;
  • Duc, P.A. (Department of Nano Magnetic Materials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University) ;
  • Ngoc, N.T. (Department of Nano Magnetic Materials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University) ;
  • Hien, N.T. (Department of Nano Magnetic Materials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University) ;
  • Duc, N.H. (Department of Nano Magnetic Materials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University)
  • Received : 2012.11.09
  • Accepted : 2012.11.29
  • Published : 2012.12.31
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Abstract

Experimental investigations of the magnetization, magnetostriction and magnetoelectric (ME) effects were performed on sandwich - type Metglas/PZT/Metglas laminate composites. The results have been analyzed by taking into account the demagnetization contribution. The study has pointed out that the magnetic flux concentration is strongly improved in piezomagnetic laminates with a narrower width leading to a significant enhancement of the ME effects. The piezomagnetic laminates with the optimal area dimension were integrated to form a 2-D geomagnetic device, which simultaneously can precisely detect the strength as well as inclination of the earth's magnetic field. In this case, a magnetic field resolution of better than $10^{-4}$ Oe and an angle precision of ${\pm}0.1^{\circ}$ were determined. This simple and low-cost geomagnetic-field device is promising for various applications.

Keywords

References

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