粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
Electro-Magnetic Devices, Magneto-Optics, & Recordings
Simulation Study of Switching Field and Its Applied Field Angle Dependence of Three-layer Exchange Coupled Composite Dots
N. HondaK. Yamakawa
著者情報
ジャーナル オープンアクセス

2014 年 61 巻 S1 号 p. S346-S349

詳細
抄録
Proposed exchange coupled composite (ECC) magnetic dot structure consisting of three layers was studied by simulation for practical design of the magnetic recording media. Induced perpendicular anisotropy due to the layer stacking as well as the shape anisotropy of the soft layer for a square prism ECC dot was estimated. The ECC dots with the modified perpendicular anisotropy fields for the layers exhibited a minimum switching field and a flat applied field angle dependence of the switching field near perpendicular direction as expected. This would contribute to decrease write track width or increase cross track shift margin. It is concluded that consideration of the shape and layer stacking perpendicular anisotropy is indispensable for designing practical ECC dots.
著者関連情報
© 2014 by Japan Society of Powder and Powder Metallurgy

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