Modification of the Microstructure and Magnetic Properties of Ga-Ion-Irradiated Co/Pd Multilayer Film for Future Planar Media
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概要
- 論文の詳細を見る
Ga ion irradiation was used to modify the microstructures and magnetic properties of Co/Pd multilayers, and also to fabricate patterned media. A decrease in the diffraction peak at low-angle XRD showed that the regular interface between Co and Pd layers was blurred by ion irradiation. The effective perpendicular magnetic anisotropy energy, K_<eff>, decreased from 1.7×10^6erg/cm^3 for as-grown film to 0.4×10^6erg/cm^3 for irradiated film at 2×10^<15> ions/cm^2. The easy axis of magnetization changed from perpendicular to in-plane at the highest ion dose (5×10^<15> ions/cm^2). An MFM image showed that the domain width gradually decreased with increasing ion dose, which corresponds to a decrease in the perpendicular magnetic anisotropy. Sharp boundaries between perpendicular and in-plane regions are also observed in patterned films, which indicates that localized magnetically patterns can be engineered by Ga ion irradiation.
- 社団法人日本磁気学会の論文
- 2005-08-01
著者
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Kato T.
Department of Electronics, Nagoya University
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Tsunashima S.
Department of Electronics, Nagoya University
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Suharyadi E.
Department Of Electronics Graduate School Of Engineering Nagoya University
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綱島 滋
名古屋産業科学研究所研究部
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Natsume S.
Department of Electronics, Graduate school of Engineering, Nagoya University
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Iwata S.
Center for Cooperative Research in Advanced Science and Technology (CCRAST), Nagoya University
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Natsume S.
Department Of Electronics Graduate School Of Engineering Nagoya University
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Iwata S.
Ccrast Nagoya University
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Koyama T
Fdk Corp. Shizuoka Jpn
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Kato T.
Department of Agronomy, Faculty of Agriculture, Tohoku University
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