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

共 20 条

[11] Patterning of granular magnetic media with a focused ion beam to produce single-domain islands at >140 Gbit/in2 [J].

Rettner, CT ;

Best, ME ;

Terris, BD .

IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1649-1651

[12] Fabrication of patterned media for high density magnetic storage [J].

Ross, CA ;

Smith, HI ;

Savas, T ;

Schattenburg, M ;

Farhoud, M ;

Hwang, M ;

Walsh, M ;

Abraham, MC ;

Ram, RJ .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1999, 17 (06) :3168-3176

[13] TIME-DEPENDENT MAGNETIC PHENOMENA AND PARTICLE-SIZE EFFECTS IN RECORDING MEDIA [J].

SHARROCK, MP .

IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (01) :193-197

[14]

Shimatsu T, 2004, IEEE T MAGN, V40, P2483, DOI [10.1109/TMAG.2004.832448, 10.1109/tmag.2004.832448]

[15]

SUZUKI T, 1997, J MAGN SOC JPN, V21, P177

[16] Design of multisurface single pole head for high-density recording [J].

Takahashi, S ;

Yamakawa, K ;

Ouchi, K .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :6546-6548

[17]

TAKAHASHI S, 2005, INT S CREAT MAGN REC, P27

[18] Ion-beam patterning of magnetic films using stencil masks [J].

Terris, BD ;

Folks, L ;

Weller, D ;

Baglin, JEE ;

Kellock, AJ ;

Rothuizen, H ;

Vettiger, P .

APPLIED PHYSICS LETTERS, 1999, 75 (03) :403-405

[19] Composite media for perpendicular magnetic recording [J].

Victora, RH ;

Shen, X .

IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (02) :537-542

[20] Patterned media: A viable route to 50 Gbit/in(2) and up for magnetic recording? [J].

White, RL ;

New, RMH ;

Pease, RFW .

IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (01) :990-995

← 1 2 →