DocumentCode :
3142056
Title :
Optimization of the performance of perpendicular magnetic recording media
Author :
Lengsfield, Byron ; Schabes, Mamfred
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
fYear :
2003
fDate :
6-8 Jan. 2003
Firstpage :
32
Abstract :
This work extends earlier theoretical studies as the time dependent fields present at a transition during the recording process were analyzed as a function of magnetic spacing, exchange, saturation magnetization and anisotropy. The trade-off between smaller transition lengths and larger cross track correlation lengths as function of these media parameters was investigated for a large matrix of material parameters. The simulated signal roll off produced in this study was found to agree closely with recent experimental studies of high performance granular media. Our simulations indicate that there is a range of material parameters that produces a small transition length in thermally stable perpendicular media.
Keywords :
magnetisation; perpendicular magnetic anisotropy; perpendicular magnetic recording; storage media; cross track correlation lengths; magnetic anisotropy; magnetic exchange; magnetic saturation; magnetic spacing; material parameters; media parameters; performance optimization; perpendicular magnetic recording media; saturation magnetization; simulated signal roll off; thermally stable perpendicular media; time dependent fields; transition lengths; Elementary particle exchange interactions; Magnetic analysis; Magnetic anisotropy; Magnetic heads; Magnetic materials; Magnetic multilayers; Micromagnetics; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Joint NAPMRC 2003. Digest of Technical Papers [Perpendicular Magnetic Recording Conference]
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-7746-X
Type :
conf
DOI :
10.1109/NAPMRC.2003.1177036
Filename :
1177036
Link To Document :
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