Title :
Thermal relaxation in perpendicular double-layered media
Author :
Jiang, W.H. ; Muraoka, H. ; Sugita, Y. ; Nakamura, Y.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
fDate :
7/1/1998 12:00:00 AM
Abstract :
Output decay by thermal relaxation in perpendicular double-layered media is studied by numerical calculation and experiments. In addition some influences due to a single pole head are pointed out. We suggest that if these influences could be avoided, thermal relaxation in perpendicular magnetic recording would be much smaller than reported so far. High recording density and low noise is possible with relatively small particles, even at large film thickness in perpendicular magnetic recording
Keywords :
magnetic heads; magnetic recording noise; magnetic thin film devices; perpendicular magnetic recording; magnetic recording; noise; numerical calculation; perpendicular double-layered media; recording density; single pole head; small particles; thermal relaxation; Anisotropic magnetoresistance; Coercive force; Demagnetization; Magnetic films; Magnetic heads; Magnetic noise; Magnetization; Perpendicular magnetic recording; Transistors; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
