A study of the magnetic domains of isolated fine particles of Ba ferrite

Osamu Kitakami, Kimiyoshi Goto, Tomoaki Sakurai

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Isolated Ba ferrite particles are prepared by the conventional powder metallurgical method, and the magnetic domains of about 200 particles 0.5 to 5 μm in size are investigated by the colloid-SEM method (the Bitter method using a scanning electron microscope). The relationship between the three-dimensional sizes of Ba ferrite particles and their magnetic domain states is clarified. It is found that the critical size of isolated single-domain particles of Ba ferrite is somewhat larger than the value calculated using the magnetic domain theory.

Original languageEnglish
Pages (from-to)2274-2277
Number of pages4
JournalJapanese journal of applied physics
Volume27
Issue number12R
DOIs
Publication statusPublished - 1988 Dec
Externally publishedYes

Keywords

  • Ba ferrite
  • Colloid-SEM method
  • Magnetic domain
  • Single-domain particle

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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