Effect of Cu on the structure and magnetic properties of FePt sputtered film

Y. K. Takahashi, M. Ohnuma, K. Hono*

*この研究の対応する著者

研究成果: Article査読

142 被引用数 (Scopus)

抄録

We have investigated the effect of Cu addition to the FePt alloy on the ordering kinetics and the coercivities of sputter deposited thin films. By alloying 4at% Cu, the temperature that A1 phase orders to the L10 structure decrease from 500°C to 400°C. The lattice parameters of the L10-ordered phase suggest that Fe atoms are substituted by Cu. The grain size increases by the addition of Cu, suggesting that the decrease of the annealing temperature for ordering is due to the enhanced kinetics of ordering as a result of higher diffusivity obtained from the alloy with the lower melting temperature.

本文言語English
ページ(範囲)259-265
ページ数7
ジャーナルJournal of Magnetism and Magnetic Materials
246
1-2
DOI
出版ステータスPublished - 2002 4
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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