High-Areal Density Recording Simulation of Three-Layered ECC Bit-Patterned Media With a Shielded Planar Head

被引:2
|
作者
Honda, Naoki [1 ]
Yamakawa, Kiyoshi [2 ]
机构
[1] Tohoku Inst Technol, Sendai, Miyagi 9828577, Japan
[2] Akita Ind Technol Ctr, Akita 0101623, Japan
关键词
Anisotropy compensation; applied field angle dependence; multilayered exchange coupled composite; recording simulation; switching field;
D O I
10.1109/TMAG.2014.2326924
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Magnetic parameters of the previously proposed three-layer exchange coupled composite (ECC) dot were modified to compensate the additional perpendicular anisotropy from the shape and the stacking of the layers. The modification in the magnetic parameters resulted in a minimum switching field and applied field angle dependence of the field. Recording simulation using a multistepped shielded planar head field on the bit-patterned media with modified three-layer ECC dots suggested possibility of a high-areal density recording above 4 T dot/in(2) with no energy assist scheme. It was also concluded that magnetic parameter compensation for additional shape and stacking anisotropy is indispensable for ECC dots.
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页数:4
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