Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802570 | Journal of Magnetism and Magnetic Materials | 2008 | 6 Pages |
Abstract
Design of patterned media for an areal density of 1Â Tbit/in2 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 1Â Tbit/in2. Shift margin of the write head in the cross-track 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.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Naoki Honda, Shingo Takahashi, Kazuhiro Ouchi,