CoCrPtTa薄膜媒体の面内磁気異方性と微細構造

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タイトル別名
  • Coercivity Orientation and Microstructure of CoCrPtTa Thin-Film Media.
  • CoCrPtTa ハクマク バイタイ ノ メン ナイ ジキ イホウセイ ト ビサイ コウゾウ

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抄録

A Co-alloy thin-film medium formed on a NiP textured substrate, has a macroscopic in-plane magnetic anisotropy in the circumference direction. In this study, the mechanism of in-plane magnetic anisotropy induced by CoCrPtTa-type thin-film media was investigated in the light of crystallography, with following results: (1) with an increase in the number of magnetic crystal grains whose magnetization easy axis was in the circumferential direction, the in-plane magnetic anisotropy increased relative to that in the radial direction. (2) The in-plane magnetic anisotropy was correlated with the change in the crystal structure of the Cr underlayer. when the Cr (110) interplanar spacing becomes smaller, the correlation becomes higher.

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