Enhanced grain growth of magnetic granules in Co/oxide granular films

T. Ito, O. Kitakami, Y. Shimada, Y. Kamo, S. Kikuchi

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)

Abstract

We have investigated phase separation and grain growth of Co in Co-(Si, Sm, In, Si-In)-O granular films and found significant grain growth in Co-In-O at low annealing temperature. Using this non-magnetic matrix, the annealing temperature necessary for optimal granular structures can be reduced significantly compared with conventional Co-Si-O and Co-Sm-O granular systems. A newly proposed phase separation model based on the bonding energy of constituent elements qualitatively explains all the experimental results.

Original languageEnglish
Pages (from-to)165-168
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume235
Issue number1-3
DOIs
Publication statusPublished - 2001 Oct
EventProceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan
Duration: 2000 Oct 232000 Oct 26

Keywords

  • Bonding energy
  • Granular film
  • Phase separation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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