Pinning of written bits in perpendicular recording media

被引:29
作者
Greaves, SJ
Muraoka, H
Sonobe, Y
Schabes, M
Nakamura, Y
机构
[1] Tohoku Univ, RIEC, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
关键词
perpendicular media; noise; domain wall pinning;
D O I
10.1016/S0304-8853(01)00400-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A perpendicular medium comprising two distinct magnetic layers is described. One layer has a granular structure with isolated. exchange-decoupled grains and the other is a continuous. exchange-coupled layer. In the combined structure domain wall movement is restricted and reversed grains within written bits are eliminated. The S/N ratio is improved compared with single layers of either type alone. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:418 / 423
页数:6
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