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

38 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

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Keywords

Cation distribution
First-principles calculation
Thin film
XANES
Zinc ferrite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Nakashima, S., Fujita, K., Tanaka, K., Hirao, K., Yamamoto, T., & Tanaka, I. (2007). Thermal annealing effect on magnetism and cation distribution in disordered ZnFe₂O₄ thin films deposited on glass substrates. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 3), 2543-2545. https://doi.org/10.1016/j.jmmm.2006.11.144

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

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10.1016/j.jmmm.2006.11.144