Grooved soft-underlayer for double-layered medium

被引：0
|
作者：
Takahashi, S
Yamakawa, K
Ouchi, K
Iwasaki, S
机构：
[1] Tohoku Inst Technol, Akita 0101623, Japan
[2] Akita Res Inst Adv Technol, Akita 0101623, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 287卷
关键词：
SUL; groove; track density; bit curvature;
D O I：
10.1016/j.jmmm.2004.10.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to realize high track density, a soft-underlayer (SUL) with land-and -groove shape for double-layered medium has been investigated. Both the spread and the path of magnetic flux from the head can be constrained by the land of the SUL, hence the grooved SUL seems advantageous for high track density recording showing robustness against a track misregistration. Furthermore, the recording field distribution in track width direction can be straightforward so as to limit the curvature of the recorded bit line. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：260 / 264
页数：5
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