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Enhancement Of Giant Magento-Impedance Effect Using Lc Resonance

Author

Listed:
  • Z. M. WU

    (Department of Physics, East China Normal University, Shanghai 200062, China;
    Fujian Key Laboratory of Semiconductors and Applications, Department of Physics, Xiamen University, Xiamen 361005, China)

  • Z. J. ZHAO

    (Department of Physics, East China Normal University, Shanghai 200062, China)

  • L. P. LIU

    (Department of Physics, East China Normal University, Shanghai 200062, China)

  • H. LIN

    (Department of Physics, East China Normal University, Shanghai 200062, China)

  • J. K. CHENG

    (Department of Physics, East China Normal University, Shanghai 200062, China)

  • J. X. YANG

    (Department of Physics, East China Normal University, Shanghai 200062, China)

  • X. L. YANG

    (Department of Physics, East China Normal University, Shanghai 200062, China)

Abstract

In this study, resonance enhancement of giant magneto-impedance (GMI) effect inFe-basedFe73.5Cu1Nb3Si13.5B9glass-coated microwires was investigated. A new method was adopted by sputtering a copper layer in the outside of theFe-based glass-coated wire. A capacitance forms between the ferromagnetic core and outer copper layer, where the glass insulator works as a dielectric layer. Therefore, the composite wire forms an LC resonance circuit (which consists of an inductor, represented by the letter L, and a capacitor, presented by the letter C) itself, resulting in an increase of GMI ratio from 250% to 330%. Meanwhile, the influence of resonance frequency on the GMI effect was discussed.

Suggested Citation

  • Z. M. Wu & Z. J. Zhao & L. P. Liu & H. Lin & J. K. Cheng & J. X. Yang & X. L. Yang, 2008. "Enhancement Of Giant Magento-Impedance Effect Using Lc Resonance," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 15(01n02), pages 87-90.
    • Handle: RePEc:wsi:srlxxx:v:15:y:2008:i:01n02:n:s0218625x08011020
    DOI: 10.1142/S0218625X08011020
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