The Giant Magneto-Impedance Effect of Current-Annealed Fe-Based Ribbons | Zendy

Jun He | Zendy; Hui-qun Guo | Zendy; Cheng Li-zhi | Zendy; Shen Bao-Gen | Zendy; HE Kaiyuan | Zendy; Yihua Liu | Zendy

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The Giant Magneto-Impedance Effect of Current-Annealed Fe-Based Ribbons

Author(s) -

Jun He,

Hui-qun Guo,

Cheng Li-zhi,

Shen Bao-Gen,

HE Kaiyuan,

Yihua Liu

Publication year - 1999

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.48.159

Subject(s) - annealing (glass) , materials science , condensed matter physics , skin effect , magnetic field , electrical impedance , giant magnetoimpedance , giant magnetoresistance , nuclear magnetic resonance , composite material , physics , magnetoresistance , quantum mechanics

The influence of current annealing process on the giant magneto-impedance (GMI) effect of Fe84Zr8Nb3.5Cu1 ribbons was studied. The obtained results showed that with increasing annealing current, the GMI ratio ΔZ/Z(ΔZ/Z=(Z(H)-Z(Hmax))/Z(Hmax)) is enhanced. The maximal GMI ratio of about 62% is obtained for the sample annealed at 820 mA for 10min, while the sensitivity can reach a value up to about 0.23% (A/m)-1. In combination with the evolution of electrical and soft magnetic properties, the dependence of the GMI effect on the frequency and applied longitudinal field has been discussed by means of skin effect.

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