Title :
Nonlinear magnetization time decay for high density recording media
Author :
Suzuki, Toshiyuki ; Matsumoto, Noriaki
Author_Institution :
Kyushu Inst. of Design, Fukuoka, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
This paper describes nonlinear relations between magnetization time decay M(t) and log(t), observed for metal particulate (MP), Ba ferrite particulate (BF), and metal evaporated (ME) tapes plus sputter-deposited disk media. When observation time was sufficiently long (24 hours for the present study), it was found that all the media exhibited nonlinear magnetization time decay. Magnetization decay time constants for MP and BP media were estimated by applying Richter-type demagnetization
Keywords :
demagnetisation; magnetic recording; magnetisation; Ba ferrite particulate tape; Richter demagnetization; high density recording medium; metal evaporated tape; metal particulate tape; nonlinear magnetization time decay; sputter deposited disk; thermal stability; Demagnetization; Disk recording; Ferrites; Hard disks; Magnetic field measurement; Saturation magnetization; Temperature; Thermal stability; Time measurement; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
