Size dependent magnetic properties of zinc ferrite fine particles

M. Yokoyama, E. Ohta, T. Sato, T. Komaba, T. Sato

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We investigate the particle size dependence of magnetic properties of ZnFe2O4 fine particles. The fine particles with different particle sizes were obtained by heating the coprecipitated powder. The magnetization slowly increases with decreasing the particle size, and drastically in the particles with diameter < 30 nm. The size dependent magnetization shows maximum around ∼8 nm in diameter. The Curie temperature also increases with decreasing the particle size. Such changes in the magnetization and Curie temperature can be explained in terms of the distribution ofFe3+ ions dependent on the particle size.

本文言語English
ページ(範囲)C1-521-C1-522
ジャーナルJournal De Physique. IV : JP
7
1
DOI
出版ステータスPublished - 1997 3

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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