Effects of Electron Beam Irradiation on Giant Magnetostriction and Its Susceptibility of Fe2.6Sm Alloy Amorphous Films

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  • Taira Yoshio
    Department of Materials Science, School of Engineering, Tokai University
  • Oikawa Tsutomu
    Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University
  • Masuda Shingo
    Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University
  • Iwata Keisuke
    Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University
  • Tonegawa Akira
    Unified graduate School of Science and Technology, Tokai University
  • Matsumura Yoshihito
    Unified graduate School of Science and Technology, Tokai University
  • Nishi Yoshitake
    Department of Materials Science, School of Engineering, Tokai University Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University Unified graduate School of Science and Technology, Tokai University

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  • Ｆｅ２．６Ｓｍ非晶質合金薄膜の超磁歪と磁歪感受率に及ぼす電子線照射の効果
  • Fe2 6Sm ヒショウシツ ゴウキン ハクマク ノ チョウジワイ ト ジワイ カンジュリツ ニ オヨボス デンシセン ショウシャ ノ コウカ

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Abstract

  Influences of electron beam (EB) irradiation on magnetostriction and its susceptibility of Fe2.6Sm alloy thin films have been investigated. The alloy thin film deposited on a (100) plane of a silicon wafer is prepared by using a direct current magnetron sputtering apparatus. The irradiation enhances compressive magnetostriction and its susceptibility. The large magnetostriction of the irradiated Fe2.6Sm sample occurs, because the irradiation prevents generating the Fe3Sm crystalline with small magnetostriction. On the other hand, the high susceptibility is explained by randomization, induced by EB-irradiation, of Fe2.6Sm amorphous sample, where the magnetic moment rotates easily.<br>

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