Optimum compositions for the low-temperature fabrication of highly ordered FePt (001) and FePt (110) films

Takeshi Seki, Toshiyuki Shima, Koki Takanashi, Yukio Takahashi, Eiichiro Matsubara, Kazuhiro Hono

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The composition dependence of the degree of chemical order S and uniaxial magnetic anisotropy energy Ku has been investigated for FePt (001) and FePt (110) films deposited at the substrate temperature Ts = 300°C, and the optimum compositional region for L10 ordering in FePt (110) films has been compared with that in FePt (001) films. It has been found that high S and large Ku are obtained around the stoichiometric composition for FePt (110) films, whereas they are obtained around an off-stoichiometric Pt-rich composition for FePt (001) films, indicating that the difference in optimum compositions for achieving highly ordered structure between FePt (001) and FePt (110) films at reduced temperature.

Original languageEnglish
Pages (from-to)2522-2524
Number of pages3
JournalIEEE Transactions on Magnetics
Volume40
Issue number4 II
DOIs
Publication statusPublished - 2004 Jul 1

Keywords

  • Composition dependence
  • FePt thin film
  • Low-temperature fabrication
  • Sputter-deposition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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