Micromagnetic study of recording process on longitudinal thin-film media

被引:9
作者
Mochizuki, M [1 ]
Mitsumata, C
Yoshida, K
Nakamura, A
Maruyama, Y
Takano, H
Aoi, H
机构
[1] Hitachi Met Ltd, Magnet & Elect Mat Res Lab, Kumagaya, Saitama 3600843, Japan
[2] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan
[3] Hitachi Ltd, Data Storage & Retrieval Syst Div, Kanagawa 2568510, Japan
关键词
micromagnetic simulation; magnetization transition curvature; perpendicular component of head field;
D O I
10.1109/20.800878
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
Through a micromagnetic computer simulation, we have examined the configuration of magnetic transitions in thin-film recording media. We found that the perpendicular component Hz of head field significantly affects the bending of the magnetization transition. Specifically, the bending is dominated by the ratio between the in-plane component of the head field Hxy and the head-field angle, which is given by phi=atan(Hz/Hxy). This indicates that the reduction of Hz will help enable a straight magnetization transition and higher areal density.
引用
收藏
页码:2520 / 2522
页数:3
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