文章基本信息

标题：シールド型GMRヘッドの再生分解能に対するリードトラック幅の影響
本地全文：下载
作者：夏衛星 ; 鈴木良夫 ; 青井基等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2004
卷号：58
期号：7
页码：982-986
DOI：10.3169/itej.58.982
出版社：The Institute of Image Information and Television Engineers
摘要：Achieving high linear density is indispensable for high density in perpendicular magnetic recording. Therefore, a narrow reproducing pulse is important. The degradation of the resolution of a narrow track GMR head is a concern due to the resolution degradation in track edge. The sensitivity function and output of a shielded GMR head with different read track widths were investigated by using a commercial software JMAG-Studio which was based on 3 dimensional finite element method. The results were compared with calculation by using the two-dimensional finite element method and analytical expression. Although the sensitivity function in the track center became narrower when the read track width was narrower, almost no changes in the all track output by reciprocity occurred, for either perpendicular or longitudinal reproduction. Based on this calculation, our work showed that read track width had almost no influence on the reading resolution of a shielded GMR head.
关键词：GMRヘッド;垂直磁気記録;狭トラック再生;再生分解能