Readback responses in three dimensions tor multilayered recording media configurations

被引：17

作者：

Wood, Roger W. ^{[2
]}

Wilton, David T. ^{[1
]}

机构：

[1] Univ Plymouth, Sch Math & Stat, Plymouth PL4 8AA, Devon, England

[2] Hitachi Global Storage Technol, San Jose, CA 95193 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 07期

关键词：

anisotropic permeability; DC null; frequency response; layered media; magnetic recording; 3-D response;

D O I：

10.1109/TMAG.2008.920525

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：

We have applied a technique for modeling the transmission of three-dimensional (3-D) magnetic fields through an arbitrary number of layers of a layered structure to the specific case of a recording medium in order to study and explain the readback response for a variety of perpendicular recording configurations. We examine in particular the low-frequency response associated with flux-flow in the soft underlayer and the behavior of the main response for finite. read and write widths. Our work leads to a useful analytic approximation for the 3-D on-track readback response.

引用

页码：1874 / 1890

页数：17

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