MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Magnetic Properties of Cluster/Thin-Film Laminated Hybrids of Fe–Pt and Fe–Co Alloys
Kenji SumiyamaShogo SawaDong Liang PengYuichiro KurokawaTakeshi YamabuchiTakehiko Hihara
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2012 Volume 53 Issue 9 Pages 1563-1570

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Abstract

Both Fe–Pt cluster/Fe–Co film and Fe–Co cluster/Fe–Pt film laminated hybrids have been prepared by combination of a plasma-gas-cluster-deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In Fe–Pt cluster/Fe–Co film laminated hybrids, MS increases, while HC and BHMAX monotonically decrease with the Fe–Co film thickness. In Fe–Co cluster/Fe–Pt film laminated hybrids, MS, HC and BHMAX increase with the Fe–Co cluster layer thickness in comparison with those of simple Fe–Pt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of Fe–Co clusters and the difficulty in the diffusion-control of Fe and Co atoms from Fe–Co to Fe–Pt layers.

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© 2012 The Japan Institute of Metals and Materials
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