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Preparation of Fe/SiO2 films by sputtering and their magnetic properties.

Published online by Cambridge University Press:  15 February 2011

Tomoko Akai ,
Mitsuharu Tabuchi ,
Ryoji Funahashi  and
Hiroshi Yamanaka
Tomoko Akai
Affiliation:
Osaka National Research Institute, Ikeda, Osaka Japan., [email protected]
Mitsuharu Tabuchi
Affiliation:
Osaka National Research Institute, Ikeda, Osaka Japan., [email protected]
Ryoji Funahashi
Affiliation:
Osaka National Research Institute, Ikeda, Osaka Japan., [email protected]
Hiroshi Yamanaka
Affiliation:
Osaka National Research Institute, Ikeda, Osaka Japan., [email protected]
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Abstract

SiO2 thin films containing fine Fe particles were prepared by a co-sputtering method. α-Fe particles were then formed by heat-treating the film at 650°C to 700°C. The average size of the particles was controlled by changing heat-treatment time and temperature. The magnetic properties of these samples were investigated and discussed in terms of the size of the particles. It was found that the coercivity of the sample containing α-Fe particles (average particle size = 24nm) is as large as 36 Oe which is much higher than that of the bulk Fe.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 400: Symposium E – Metastable Metal-Based Phases and Microstructures , 1995 , 347
Copyright
Copyright © Materials Research Society 1996

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