Thermal annealing effect on magnetism and cation distribution in disordered ZnFe2O4 thin films deposited on glass substrates

Seisuke Nakashima; Koji Fujita; Katsuhisa Tanaka; Kazuyuki Hirao; Tomoyuki Yamamoto; Isao Tanaka

doi:10.1016/j.jmmm.2006.11.144

Thermal annealing effect on magnetism and cation distribution in disordered ZnFe₂O₄ thin films deposited on glass substrates

Seisuke Nakashima, Koji Fujita, Katsuhisa Tanaka, Kazuyuki Hirao, Tomoyuki Yamamoto, Isao Tanaka

School of Fundamental Science and Engineering

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

40 Citations (Scopus)

Abstract

The effect of thermal annealing on magnetic properties has been investigated for disordered zinc ferrite (ZnFe₂O₄) thin films deposited on silica glass substrates using a sputtering method. The magnetization at room temperature is enhanced by annealing at relatively low temperature such as 300 °C and decreased by annealing at higher temperatures. X-ray absorption near edge structures indicate that ZnFe₂O₄ thin film annealed at 300 °C possesses disordered cation distribution similar to that for as-deposited thin film. It is presumed that the enhancement of magnetization by annealing at 300 °C is due to precipitation of disordered ZnFe₂O₄ crystal from an amorphous matrix formed in the as-deposited thin film.

Original language	English
Pages (from-to)	2543-2545
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 3
DOIs	https://doi.org/10.1016/j.jmmm.2006.11.144
Publication status	Published - 2007 Mar 1

Keywords

Cation distribution
First-principles calculation
Thin film
XANES
Zinc ferrite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Thermal annealing effect on magnetism and cation distribution in disordered ZnFe₂O₄ thin films deposited on glass substrates. / Nakashima, Seisuke; Fujita, Koji; Tanaka, Katsuhisa; Hirao, Kazuyuki; Yamamoto, Tomoyuki; Tanaka, Isao.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 3, 01.03.2007, p. 2543-2545.

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

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AU - Fujita, Koji

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AU - Yamamoto, Tomoyuki

AU - Tanaka, Isao

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