Fabrication of two-dimensional assembly of L10 FePt particles

Y. Shimada, Toshio Sakurai, T. Miyazaki, O. Kitakami, S. Okamoto

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Synthesis of L10 phase FePt particles which are two-dimensionally distributed on a substrate surface is studied. In order to obtain a fine particle assembly of L10 phase the low temperature ordering process of FePt from Fe/Pt multilayers is extended to multilayers of Fe-(MgO,Ag)/Pt-(MgO,Ag). In the annealing process of these multilayer structures Fe tends to migrate in MgO or Ag toward Pt while Pt tends to remain in the original position. Double layers of Fe-Ag/Pt are chosen to synthesize a two-dimensional distribution of ordered FePt particles. According to the Auger and micro-beam energy dispersion X-ray spectroscopy (EDX) analysis a part of Ag in Fe-Ag layer tends to move to the surface by annealing to embed the ordered FePt particles. Measurements of δM suggest that the particles are magnetically separated.

Original languageEnglish
Pages (from-to)329-338
Number of pages10
JournalJournal of Magnetism and Magnetic Materials
Volume262
Issue number2
DOIs
Publication statusPublished - 2003 Jun 1

Keywords

  • FePt
  • Magnetic recording media
  • Multilayer
  • Ordered phase
  • Particles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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