DocumentCode
1529911
Title
Domain expansion readout system with DC magnetic field
Author
Yamaguchi, Atsushi ; Ishida, Hiroki ; Noguchi, Hitoshi ; Mitani, Kenichiro ; Takagi, Naoyuki ; Kume, Minoru
Volume
37
Issue
4
fYear
2001
fDate
7/1/2001 12:00:00 AM
Firstpage
1403
Lastpage
1405
Abstract
MAMMOS (Magnetic Amplifying Magneto Optical System) is a technique for realizing high-density magneto-optical disk. Conventional MAMMOS readout process needs AC magnetic field for expanding and erasing magnetic domains. As a new readout system, MAMMOS readout that needs only DC magnetic field using RE (Rare-Earth)-rich GdFeCo readout layer was developed. This method exhibited a high readout resolution in spite of an AC field-free method
Keywords
cobalt alloys; ferromagnetic materials; gadolinium alloys; iron alloys; magnetic domains; magnetic multilayers; magneto-optical recording; AC field-free method; DC magnetic field; GdFeCo; MAMMOS; domain expansion readout system; high-density magneto-optical disk; magnetic amplifying magneto optical system; rare-earth-rich GdFeCo readout layer; readout resolution; Land surface temperature; Magnetic domains; Magnetic fields; Magnetic moments; Magnetic recording; Optical noise; Perpendicular magnetic recording; Pump lasers; Signal resolution; Silicon compounds;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.950854
Filename
950854
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