Permeability and Noise Suppression Property of Resin Composite with Fe Flake

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  • Toyoda Yuichiro
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Ajia Saijian
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Sato Mitsuharu
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Matsuura Masashi
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Tezuka Nobuki
    Department of Materials Science, Graduate School of Engineering, Tohoku University Center for Science and Innovation Spintronics, Tohoku University Center for Spintronics Research Networks, Tohoku University
  • Endo Yasushi
    Center for Science and Innovation Spintronics, Tohoku University Center for Spintronics Research Networks, Tohoku University Department of Electrical Engineering, Graduate School of Engineering, Tohoku University
  • Sugimoto Satoshi
    Department of Materials Science, Graduate School of Engineering, Tohoku University Research Center for Rare Metal and Green Innovation (RaMGI), Tohoku University

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Other Title
  • 扁平Fe粉末を用いた樹脂複合体の透磁率とノイズ抑制特性
  • ヘンペイ Fe フンマツ オ モチイタ ジュシ フクゴウタイ ノ トウジリツ ト ノイズ ヨクセイ トクセイ

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<p>Fe flake was fabricated by ball-milling, and frequency dependences of permeability and noise suppression of resin composite with Fe flake were investigated. The aspect ratio of Fe flake increased with increasing ball-milling time (tm), and the highest aspect ratio was 43 after ball-milling for tm=12 h. Frequency dependence of imaginary part of complex permeability for resin composite with Fe flake had two inflection points (f1, f2) related to the domain-wall resonance and natural resonance. Noise suppression properties of resin composite with Fe flake was higher than that of resin composite with spherical powder, and the noise suppression property had a peak close to f2.</p>

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