狭トラックMRヘッドを用いた長手媒体の三次元磁化解析

概要

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The write field distributions of merged MR heads and the magnetization of longitudinal magnetic recording media were investigated by using a three-dimensional simulator. The recording performance of a leading-pole trimmed merged MR head(head-2)is compared with that of a conventional merged MR head(head-1). The write field of head-2 decreases more sharply at the track edge than that of head-1. The magnetization pattern recorded by using head-1 shows track edge hooks; however, fewer hooks were recorded by using head-2. It is confirmed that the effective track width(ETW)recorded by head-2 at a low linear density is narrower and the linear density dependence of the ETW is smaller than in head-1. The phase shift of the output wave recorded by head-2 in the off-track position is smaller than that of head-1. The D_<50> of head-2 is higher than that of head-1.
社団法人日本磁気学会の論文
1998-04-15