Size dependent magnetic properties of zinc ferrite fine particles

M. Yokoyama; Eiji Ohta; T. Sato; T. Komaba; T. Sato

doi:10.1051/jp4:19971212

Size dependent magnetic properties of zinc ferrite fine particles

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

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	C1-521-C1-522
Journal	Journal De Physique. IV : JP
Volume	7
Issue number	1
DOIs	https://doi.org/10.1051/jp4:19971212
Publication status	Published - 1997 Mar

ASJC Scopus subject areas

Physics and Astronomy(all)

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AU - Sato, T.

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