MEDIA NOISE IMPROVEMENT THROUGH HEAD-DISK SPACING REDUCTION

被引：4

作者：

JOHNSON, KE ^{[1
]}

WU, EY ^{[1
]}

PALMER, DC ^{[1
]}

ZHU, JG ^{[1
]}

机构：

[1] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1992年 / 28卷 / 05期

关键词：

Chromium overlayers - Head-disk spacing - Magnetic layers - Zig-zag structures;

D O I：

10.1109/20.179605

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：

Experimental and theoretical results show that media noise decreases with reduced head-media separation. Media with the same magnetic layer but with Cr overlayers of varying thickness were fabricated as a means to adjust head-media separation. Noise power vs. recording density curves exhibit an initial linear region followed by a supralinear region indicative of appreciable bit interaction. The noise maximum for the lower flying cases occurs at a higher density. The slope or the noise curve is also lower for lower fly heights indicating a lower noise level per transition. Simulations of transition pairs show a clearly defined zig-zag structure for large head-media separations. When flying near contact, the zig-zag amplitude is greatly diminished.

引用

页码：2713 / 2715

页数：3