Temperature dependence of the coercive force of ferromagnetic TM-Al-O (TM=Fe, Co) granular films

Shintaro Nakamura, Tsutomu Nojima, Akira yoshihara, Shigehiro Ohnuma

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The temperature dependence of the coercive force (H c) of ferromagnetic TM-Al-O (TM=Fe, Co) granular films has been investigated in the temperature range from 290 down to 2 K. Fe-Al-O films show weak anisotropy. In contrast, Co-Al-O films show clear in-plain anisotropy. The coercive forces of Co-Al-O films show a logarithmic temperature dependence at low temperatures while those of Fe-Al-O films are almost independent of temperature.

Original languageEnglish
Pages (from-to)773-777
Number of pages5
JournalJournal of the Korean Physical Society
Volume63
Issue number3
DOIs
Publication statusPublished - 2013 Aug 1

Keywords

  • Co-Al-O
  • Coercive force
  • Fe-Al-O
  • Ferromagnetic granular film
  • Hysteresis loop
  • Induced anisotropy
  • Magnetization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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