Effects of polymeric substrate roughness on head-medium spacing and recording properties of sputtered magnetic tape

被引：3

作者：

Lee, HS ^{[1
]}

Bain, JA ^{[1
]}

Laughlin, DE ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Ctr Data Storage Syst, Pittsburgh, PA 15213 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2005年 / 41卷 / 09期

基金：

美国安德鲁·梅隆基金会;

关键词：

effective write field gradient; overwrite; smooth polymeric substrates; spacing dependence; sputtered tape media;

D O I：

10.1109/TMAG.2005.854330

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：

We investigated the spacing dependence of recording characteristics on head-medium spacing due to the surface roughness of substrates. CoCrPt-sputtered tape media with a magnetic thickness of 25 nm were deposited onto polymeric substrates possessing very different roughnesses for this investigation. The degradation in the write and read processes due to spacing was a significant limiting factor at high densities. By utilizing smooth polymeric substrates, a substantial improvement in system bandwidth as well as effective write field gradient can be achieved. As a result, overwrite performance was also considerably improved over the frequency range of interest.

引用

页码：2529 / 2533

页数：5

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