Media saturation and overwrite in perpendicular recording

被引：23

作者：

Taratorin, AM ^{[1
]}

Klaassen, KB ^{[1
]}

机构：

[1] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95120 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 02期

关键词：

media saturation; overwrite; perpendicular magnetic recording;

D O I：

10.1109/TMAG.2005.861772

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：

A novel spin-stand method for measuring the perpendicular write pole "footprint" is proposed. This method allows the detailed study of the spatio-temporal pole footprint dynamics and the two-dimensional media saturation and noise. Experimental footprint measurements are presented and the problems caused by the magnetic nouniformity of the poles are addressed. The perpendicular overwrite process is studied by time-domain waveform analysis. The spatial distribution of the overwrite signal is determined by the geometry and the magnetic uniformity of the write pole footprint. The dependence of recording parameters on write current overshoot in perpendicular recording is also analyzed.

引用

页码：157 / 162

页数：6

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