Title :
Micromagnetic studies of disk drive servo performance for ultra-high density magnetic recording
Author :
Champion, Eric ; Kadlec, Ronald ; Bertram, H. Neal
Author_Institution :
Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
A combined head-medium micromagnetic model is used to analyze servo systems for 10 Gbit/in2 recording. Servo patterns are recorded using a micromagnetic medium model to accurately describe the edge-track and noise phenomena. A micromagnetic spin-valve model is then used to replay the recorded information and obtain the position error signal (PES) as a function of off-track position. The results show that the PES linearity is a strong function of the write gap width and deep gap field
Keywords :
magnetic disc storage; magnetic recording noise; servomechanisms; disk drive; edge track; head-medium micromagnetic model; noise; position error signal; servo system; spin-valve; ultra-high density magnetic recording; Disk drives; Disk recording; Linearity; Magnetic heads; Magnetic recording; Magnetic sensors; Magnetization; Micromagnetics; Servomechanisms; Stability; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
