Recording performance improvement for perpendicular recording head with shielded sloped pole design

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作者：
Gubbins, Mark [1 ]
Cazacu, Alexandru [1 ]
Kolbo, Paul [2 ]
Nolan, Tom [3 ]
Lamberton, Robert [1 ]
Johnston, Alan [1 ]
机构：
[1] Seagate Technology, Springtown, Derry, BT48 0BF, United Kingdom
[2] Seagate Technology, 1 Disc Dive, Bloomington, MN 55435, United States
[3] Seagate Technology, 47010 Kato Road, Fremont, CA 94538, United States
来源：
Journal of Applied Physics | 2008年 / 104卷 / 11期
关键词：
A sloped write pole design is assessed for perpendicular magnetic recording at high areal densities. Modeling shows that there is a significant increase in magnetic field from the sloped pole design over the conventional pole design at a fixed write width. Spin stand measurements were carried out in order to investigate the recording benefits of the sloped pole design. Writing improvements from this writer were best observed at high media coercivity. © 2008 American Institute of Physics;
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