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Low-temperature growth of c-axis-oriented Y-type hexagonal ferrite thin films by the polymeric precursor method

Published online by Cambridge University Press:  31 January 2011

Tatsuo Fujii ,
Aiko Harano ,
Makoto Nakanishi  and
Jun Takada
Tatsuo Fujii*
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushima-naka 3–1-1, Okayama 700–8530, Japan
Aiko Harano
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushima-naka 3–1-1, Okayama 700–8530, Japan
Makoto Nakanishi
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushima-naka 3–1-1, Okayama 700–8530, Japan
Jun Takada
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushima-naka 3–1-1, Okayama 700–8530, Japan
*
a)Address correspondence to this author.e-mailtfujii@cc.okayama-u.ac.jp
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Abstract

Well-crystallized Ba2Zn2Fe12O22 (Zn2–Y) films with high c-axis oritentation were successfully formed on Ag substrates at low temperature by the polymeric precursor method. A precursor solution with stoichiometric Ba2+, Zn2+, and Fe3+ ions was deposited on the substrates by a dip-coating. The films were then heat-treated at temperatures ranging from 700 to 900 °C. The crystallization process of c-axis-oriented Zn2–Y films occurred at the considerably low temperature of 750 °C, though a small amount of spinel oxides contaminated them. The films had hexagonal grain structures which were developed by increasing the heat-treatment temperature. Magnetization curves of the Zn2–Y film heated at 900 °C clearly indicated that the film had large in-plane magnetic anisotropy and had small in-plane coercivity.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 16 , Issue 9 , September 2001 , pp. 2471 - 2474
Copyright
Copyright © Materials Research Society 2001

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