Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802390 | Journal of Magnetism and Magnetic Materials | 2008 | 4 Pages |
Abstract
Hard/soft-magnetic composite pillar array medium is proposed for ultra-high-density recording media. Magnetization reversal process for a single hard/soft-magnetic composite pillar in the medium is calculated using the Landau-Lifshitz-Gilbert equation. Magnetization reversal of the soft-magnetic unit helps the magnetization reversal for the hard-magnetic unit, and the effective coercivity for the hard-magnetic unit is greatly reduced. Thereby saturation recording to the high-Ku-hard-magnetic material used for perpendicular magnetic recording will be realizable.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
T. Tanaka, J. Matsuzaki, H. Kurisu, S. Yamamoto,