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

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2509

Lastpage

2511

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179539

Filename

179539