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STRESS-INDUCED ASYMMETRIC MAGNETOIMPEDANCE EFFECT IN Ni80Fe20/Cu COMPOSITE WIRES

Author

Listed:
  • WENXING LV

    (Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China)

  • XIN LI

    (Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China)

  • WENHUI XIE

    (Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China)

  • QIANG ZHAO

    (Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China)

  • ZHENJIE ZHAO

    (Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China)

Abstract

The magnetoimpedance effect of Ni80Fe20/Cu composited wires was experimentally investigated by varying the Ni80Fe20 coating thickness. An asymmetric MI behavior with a tunable linear region around zero magnetic field by altering the thickness of Ni80Fe20 layer was demonstrated. And the MI behavior was governed by the different anisotropy induced by the residual local stress in the multi-layer region. In addition, our investigation also suggested that the interactions between interface phase and outer phase of coating layer decreased with thickness, resulting in the domination of the asymmetric MI characteristic. For thickness of 485nm, the sensitivity was up to 225%/Oe from −2 Oe to 2 Oe, providing a promising candidate for linear sensor application.

Suggested Citation

  • Wenxing Lv & Xin Li & Wenhui Xie & Qiang Zhao & Zhenjie Zhao, 2017. "STRESS-INDUCED ASYMMETRIC MAGNETOIMPEDANCE EFFECT IN Ni80Fe20/Cu COMPOSITE WIRES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(08), pages 1-6, December.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:08:n:s0218625x17501098
    DOI: 10.1142/S0218625X17501098
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