1 April 2009 Magnetoelastic resonance enhancement of giant magnetoimpedance effect for Fe-based nanocrystalline alloy
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Abstract
Longitudinally driven giant magnetoimpedance (GMI) effect has been measured in Fe73.5Cu1Nb3Si13.5B9 ribbons, and the enhancement of GMI effect using magnetoelastic resonance was investigated. The results showed that at a certain driven frequency when magnetoelastic resonance occurred, there was a great enhancement of the impedance of the element and MI effect. For the ribbon of 1.0 cm in length annealed at 480°C, the maximum MI ratio of 10 906% was achieved at the frequency of 214 kHz. The maximum sensitivity reached up to 5 155%/Oe, which was almost 40 times higher than that observed in traditional MI measurements. The results demonstrated that the enhanced magnitude of MI effect mainly depended on magnetoelastic coupling coefficient k.
© (2009) Society of Photo-Optical Instrumentation Engineers (SPIE)
Z. M. Wu, Zhenjie Zhao, X. L. Yang, L. Jiang, Junyong Kang, Shuping Li, K. Huang, "Magnetoelastic resonance enhancement of giant magnetoimpedance effect for Fe-based nanocrystalline alloy," Journal of Micro/Nanolithography, MEMS, and MOEMS 8(2), 021150 (1 April 2009). https://doi.org/10.1117/1.3094747 . Submission:
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