Three-dimensional modeling of perpendicular reading with a soft underlayer

被引：22

作者：

Roscamp, TA ^{[1
]}

Boerner, ED ^{[1
]}

Parker, GJ ^{[1
]}

机构：

[1] Seagate Res, Pittsburgh, PA 15203 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.1452281

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A three-dimensional (3D) reciprocity based model of the perpendicular read process with a soft underlayer is presented. In 3D with finite track width, the read flux does not decay to zero because flux is always entering the reader from the field caused by a nonvanishing curl of the magnetization. As the reader is moved off track, the signal amplitude and resolution decrease, and at some off track position there is a reversal in the sign. A comparison of the reciprocity based reader model with a micromagnetic CPP reader model shows excellent agreement both on and off track. (C) 2002 American Institute of Physics.

引用

页码：8366 / 8368

页数：3

共 4 条

[1]

ASSELIN P, UNPUB

[2] RECORDING PERFORMANCE OF AN INDUCTIVE-WRITE, WIDE-SHIELDED MR READBACK HEAD WITH A DUAL LAYER PERPENDICULAR DISK [J].