Title :
Effect of Applied Magnetic Field Direction on Magnetic Cluster State of Perpendicular Recording Media
Author :
Sato, S. ; Yamaguchi, Y. ; Komine, T. ; Sugita, R.
Author_Institution :
Ibaraki Univ., Hitachi, Japan
Abstract :
We investigated influence of applied magnetic field direction on magnetic cluster state of perpendicular recording media. As a result, cluster size estimated from MFM images did not change as the applied field angle changed. On the other hand, it was clarified that the stray field from the media decreased as the applied field angle from the perpendicular direction increased. The decrease of the stray field is presumed to originate from magnetic cluster including subdomains less than MFM resolution.
Keywords :
magnetic force microscopy; perpendicular magnetic recording; MFM image; applied field angle; applied magnetic field direction; magnetic cluster state; perpendicular recording media; stray field; Magnetic noise; Magnetic resonance imaging; Magnetic shielding; Media; Perpendicular magnetic recording; Saturation magnetization; Domain; ECC media; magnetic cluster; perpendicular recording media;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2200460
