Title :
High density overwriting in exchange-coupled magneto-optical multilayer films
Author :
Nakaki, Y. ; Fukami, T. ; Tokunaga, T. ; Kawano, Y. ; Tsutsumi, K.
Author_Institution :
Mitsubishi Electric Corp., Hyogo, Japan
fDate :
9/1/1992 12:00:00 AM
Abstract :
The possibility of high-density overwrite recording using the light modulation method in magnetooptical disks has been investigated. It was found that the area around a mark written by irradiation of high power was erased spontaneously, regardless of the prerecorded states. It is effective for high-linear-density recording. On a disk with a track pitch of 1.4 μm, signal deterioration by thermal interference was not observed after recording at an adjacent track with an off-track of 0.2 μm
Keywords :
cobalt alloys; iron alloys; magnetic multilayers; magneto-optical recording; optical modulation; terbium alloys; TbFeCo-GdFeCo-DyFeCo; exchange-coupled magneto-optical multilayer films; high-density overwrite recording; high-linear-density recording; light modulation method; magnetooptical disks; self erased width; self sharpening effect; track pitch; Disk recording; Intensity modulation; Jitter; Laboratories; Magnetic materials; Magnetic multilayers; Magnetooptic devices; Magnetooptic effects; Magnetooptic recording; Optical coupling;
Journal_Title :
Magnetics, IEEE Transactions on
