Design and recording simulation of 1 Tbit/in2 patterned media

被引：13

作者：

Honda, Naoki ^{[1
]}

Takahashi, Shingo ^{[1
]}

Ouchi, Kazuhiro ^{[1
,2
]}

机构：

[1] Akita Prefectural Res & Dev Ctr, Res Inst Adv Technol, Akita 0101623, Japan

[2] Akita Prefectural Univ, Fac Syst Sci & Technol, Yurihonjo 0150055, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 18期

基金：

日本科学技术振兴机构;

关键词：

patterned magnetic recording media; medium design; recording simulation; 1 Tbit/in(2) recording; dot shape and size;

D O I：

10.1016/j.jmmm.2008.03.048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Design of patterned media for an areal density of 1 Tbit/in(2) with thermal stability is presented based on perpendicular M-H loops of the media. Required perpendicular magnetic anisotropy was estimated to be achieved with known materials. However, it is indicated that magnetostatic interaction between the dots becomes a limiting factor for achieving higher densities. Recording simulation using a Karlqvist pole head on the designed media exhibited possibility of the recording of 1 Tbit/in(2). Shift margin of the write head in the crosstrack direction was found to be increased with elongated dots in the down-track direction. Recording simulation with an FEM-analyzed field of a side-shielded multi-surface pole head exhibited successful recording with increased cross-track shift margins as well as the effect of the elongated dot shape. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2195 / 2200

页数：6

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