Microscopic noise and signal characteristics of perpendicular recording medium studied by magnetic force microscopy

被引：8

作者：

Honda, Y

Hirayama, Y

Ito, K

Futamoto, M

机构：

[1] Central Research Laboratory, Hitachi Ltd., Kokubunji

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1997年 / 33卷 / 05期

关键词：

D O I：

10.1109/20.617849

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：

Signal and noise characteristics around the recorded track edges of a CoCrTa perpendicular medium are investigated in a microscopic scale by magnetic force microscopy coupled with Fourier-analysis. The noise level within the recorded region is higher than that of DC erased region, and the medium noise near the both track-edges is higher than that measured at the recorded track center. Sharp off-track overwrite profiles are confirmed when the low-frequency signal(45 kFCI) is off-track overwritten by the high-frequency signal(200 kFCI).

引用

页码：3076 / 3078

页数：3

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