Structure, morphology and magnetic properties of Fe-B-Si-Nb glassy alloy thin film prepared by a pulsed laser deposition method

Kana Takenaka, Toshio Sugimoto, Nobuyuki Nishiyama, Akihiro Makino, Yasunori Saotome, Yoshihiko Hirotsu, Akihisa Inoue

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

With the aim of applying to a soft magnetic underlayer of the double-layered perpendicular magnetic recording media, an Fe74.9B17.5Si2.5Nb5.1 alloy thin film was fabricated on Si substrate by a pulsed laser deposition method. The Fe-based alloy thin film of 200 nm in thickness was confirmed as a glassy structure. The thermal properties of the thin film have similar features to those for the melt-spun glassy alloy ribbon. The glassy alloy thin film exhibits good soft magnetic properties, i.e., high Bs of 1.2 T and in-plane low Hc of 134 A/m. The Fe-B-Si-Nb glassy alloy thin film is expected to be suitable for the soft magnetic underlayer material in the double-layered perpendicular magnetic recording media.

Original languageEnglish
Pages (from-to)1895-1897
Number of pages3
JournalMaterials Letters
Volume63
Issue number21
DOIs
Publication statusPublished - 2009 Aug 31

Keywords

  • Deposition
  • Magnetic materials
  • Thin film

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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