Advanced probe head for perpendicular recording

被引：9

作者：

Liu, F ^{[1
]}

Stoev, K ^{[1
]}

Chen, YJ ^{[1
]}

Dang, XZ ^{[1
]}

Wang, J ^{[1
]}

Jiang, H ^{[1
]}

Liu, YS ^{[1
]}

Luo, P ^{[1
]}

Wang, LC ^{[1
]}

Esch, R ^{[1
]}

Chen, J ^{[1
]}

Gu, SF ^{[1
]}

Liu, C ^{[1
]}

Kung, KT ^{[1
]}

Lederman, M ^{[1
]}

Re, M ^{[1
]}

机构：

[1] Read Rite Corp, Fremont, CA 94539 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 04期

关键词：

finite-element model; high areal density magnetic recording; perpendicular recording;

D O I：

10.1109/TMAG.2002.1017750

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：

Basic design and recording performance of the advanced probe heads are described. Excellent writability of the advanced probe heads is demonstrated by a series of overwrite (OW) and nonlinear transition shift (NLTS) saturation measurements. Write currents as low as 5 mA(o-p) are required for recording. Excellent OW can be obtained with both high and low OW ratios. Media with vibrating sample magnetometry coercivities as high as 7000 Oe can be recorded with OW of 30 dB. Better than -14 dB of NLTS was measured at a linear density of 600 kfci. Minimal side-writing has been observed using the advanced probe heads with square pole shape. External field sensitivity of the advanced probe heads has also been shown to be excellent as larger than 58 Oe of external field is required to erase a low density signal on a 3380-Oe disk. Modeling results also show that the basic architecture of advanced probe head is extendible to 0.1-mum square pole.

引用

页码：1647 / 1651

页数：5

共 14 条

[1]

BATRA S, 2001, TMRC 2001

[2] SNR and density limit estimates: A comparison of longitudinal and perpendicular recording [J].