Influence of hard-transition shift on overwrite characteristics in perpendicular magnetic recording

被引:12
作者
Shigematsu, H [1 ]
Muraoka, H [1 ]
Nakamura, Y [1 ]
机构
[1] Tohoku Univ, Elect Commun Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan
关键词
overwrite; hard-transition shift; periodicity; lowest common multiple;
D O I
10.1016/S0304-8853(01)00403-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The influence of hard-transition shift (HTS) on overwrite (O/W) performance is described. Previously, we reported for the case where a low density background signal is overwritten by a high density signal in perpendicular magnetic recording. We concluded that the influence of HTS was periodic and affected O/W performance. Here we also report for the opposite case, where a high density signal is overwritten by a low density signal. Again, we find that the influence of HTS is periodic, or a sort of modulation. However, in this case, our experiments show that it does not affect O/W performance. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:435 / 439
页数:5
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ISE K, INT 2000
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