Origin of perpendicular magnetic anisotropy in Tb-Fe amorphous alloy

Motoki Ohta, Kazumasa Yamada, Yoshihiko Satake, Asaya Fujita, Kazuaki Fukamichi

研究成果: Article査読

9 被引用数 (Scopus)

抄録

The origin of perpendicular magnetic anisotropy has been investigated in a thick Tb-Fe amorphous alloy plate prepared by dc high-rate sputtering. In the as-prepared samples with and without a Cu substrate, no distinct difference in perpendicular magnetic anisotropy was confirmed. After annealing, the perpendicular magnetic anisotropy in the sample with a Cu substrate was maintained, whereas that disappeared in the sample without a Cu substrate. Inducing thermal strains with an epoxy resin, the perpendicular magnetic anisotropy was restored. Therefore, it is concluded that the strong strains induced by the difference between the thermal expansion of the Tb-Fe amorphous alloy plate and the Cu substrate dominate to the origin of perpendicular magnetic anisotropy.

本文言語English
ページ(範囲)2605-2610
ページ数6
ジャーナルMaterials Transactions
44
12
DOI
出版ステータスPublished - 2003 12

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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