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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27474

Title: Fast switching in single-domain particles with quartic anisotropy
Authors: Jyh-Shinn Yang;Ching-Ray Chang
Contributors: NTOU:Institute of Optoelectronic Sciences
國立臺灣海洋大學:光電科學研究所
Keywords: Quartic anisotropy;Fast switching;Precessional switching;Tilted media
Date: 2005-02
Issue Date: 2011-10-21T02:31:54Z
Publisher: Journal of Magnetism and Magnetic Materials(J. Magn. Magn. Mater)
Abstract: Abstract:The effect of quartic anisotropy on angular dependence of the high-speed switching behavior for uniaxial particles is studied. For large applied field angles with respect to the anisotropy axis, the magnetization reversal is dominated by the precessional switching and the switching speed is very fast in the presence of quartic anisotropy. The quartic anisotropy enhances the switching fields moderately, and expands the precessional switching regime towards the anisotropy axis, while slightly increases the switching time for the applied field magnitude larger than the anisotropy field. The angular dependence of switching field exhibits a broad minimum around the field angle of 45° for large quartic anisotropy. The results have implications for improving the recording characteristics of the tilted media. PACS 75.40.Gb; 75.40Mg; 75.50.Ss
Relation: 287, pp.303-307
URI: http://ntour.ntou.edu.tw/handle/987654321/27474
Appears in Collections:[光電科學研究所] 期刊論文

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