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Magnetic domain characterizations of anisotropic-shaped MnAs nanoclusters position-controlled by selective-area metal-organic vapor phase epitaxy

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タイトル: Magnetic domain characterizations of anisotropic-shaped MnAs nanoclusters position-controlled by selective-area metal-organic vapor phase epitaxy
著者: Ito, Shingo 著作を一覧する
Hara, Shinjiroh 著作を一覧する
Wakatsuki, Toshitomo 著作を一覧する
Fukui, Takashi 著作を一覧する
キーワード: magnetic anisotropy
magnetic domains
magnetic force microscopy
manganese compounds
nanostructured materials
spontaneous magnetisation
発行日: 2009年 6月15日
出版者: American Institute of Physics
誌名: Applied Physics Letters
巻: 94
号: 24
開始ページ: 243117
出版社 DOI: 10.1063/1.3157275
抄録: The authors report the buildup fabrication and magnetic domain characterizations of anisotropic-shaped MnAs nanoclusters position-controlled on partially SiO2-masked GaAs (111)B substrates by selective-area metal-organic vapor phase epitaxy. Magnetic force microscopy reveals that both the symmetric- and anisotropic-shaped nanoclusters show spontaneous magnetization at room temperature. Some of the nanoclusters show a single magnetic domain, in which magnetized directions are along one of the a-axes of NiAs-type MnAs, after the external magnetic fields up to 3500 Gauss are applied in-plane. The magnetic domains are well controlled by introducing both magnetocrystalline and shape magnetic anisotropies in the anisotropic-shaped nanoclusters.
Rights: Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 94, 243117, 2009, and may be found at http://dx.doi.org/10.1063/1.3157275
関連URI: http://link.aip.org/link/?APPLAB/94/243117/1
資料タイプ: article
URI: http://hdl.handle.net/2115/40230
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 原 真二郎

 

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