Presentation 1999/3/5
The Application of Optical Recording and Magnetic Flux Detection for Amorphous RE-TM Alloys
Hiroaki Nemoto, Hideki Saga, Hirofumi Sukeda, Masahiko Takahashi,
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Abstract(in English) Amorphous RE-TM alloys, such as TbFeCo, are suitable for high-density magneticrecording because they are easy to provide with large perpendicular magnetic anisotropy. Weprepared magnetic recording media with these materials and tried to detect the leakage magnetic flux from this media as in the recent HDDs. As a writing method, we utilized the same method as used in MO drives. In consideration of magnetic properties of the media, it seems to be difficult toreconcile both the magneto-optical recording and the flux detection. We solved this problem byintroducing magnetic bilayer media. Playback resolution is much improved compared with opticaldetection and we are expecting that a much higher density than MO disks is feasible.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) RE-TM alloy / optical reeording / magnetic flux detection / magnetic multi-layer film
Paper # CPM98-189
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Conference Information
Committee CPM
Conference Date 1999/3/5(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Application of Optical Recording and Magnetic Flux Detection for Amorphous RE-TM Alloys
Sub Title (in English)
Keyword(1) RE-TM alloy
Keyword(2) optical reeording
Keyword(3) magnetic flux detection
Keyword(4) magnetic multi-layer film
1st Author's Name Hiroaki Nemoto
1st Author's Affiliation Optical Disk Research Center, Central Research Laboratory, Hitachi Ltd.()
2nd Author's Name Hideki Saga
2nd Author's Affiliation Optical Disk Research Center, Central Research Laboratory, Hitachi Ltd.
3rd Author's Name Hirofumi Sukeda
3rd Author's Affiliation Optical Disk Research Center, Central Research Laboratory, Hitachi Ltd.
4th Author's Name Masahiko Takahashi
4th Author's Affiliation Optical Disk Research Center, Central Research Laboratory, Hitachi Ltd.
Date 1999/3/5
Paper # CPM98-189
Volume (vol) vol.98
Number (no) 633
Page pp.pp.-
#Pages 8
Date of Issue