Extremely narrow track width of deep submicron range is examined in perpendicular magnetic recording. Head field distribution of a single-pole head analyzed by 3-dimensional computer simulation results in a sharp gradient, but relatively large cross-sectional area is required to maintain head field strength. Based on this design concept, a lateral single-pole head is described and proved to attain track width of 0.4 μm. In addition, multilevel partial response appropriate to the new multitrack recording system is proposed.
|Number of pages||6|
|Journal||IEICE Transactions on Electronics|
|Publication status||Published - 1995 Nov 1|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering