The Recording of Tiny Marks Less Than 100 nm on Magneto-optical Medium Sputtered from RE-TM Alloy Target
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概要
- 論文の詳細を見る
Use of magneto-optical (MO) medium sputtered from an intermetallic compound alloy target has advantages for mass production but may not be suitable for high-density recording due to its poor perpendicular magnetic anisotropy. The relationship between MsHc, the product of saturation magnetization Ms and coercivity Hc, and film microstructure is discussed in this paper ; we obtained an MsHc of 1.3 x <10>^6 erg/<cm>^3 using microcolumnar structure even when the medium was sputtered from an alloy target. By adopting this film for the memory layer in a DWDD system, tiny marks less than 100 nm in size can be reliably written. As a result, high-density recording at 15 Gbit/<inch>^2 is achieved.
- 社団法人日本磁気学会の論文
- 2002-10-01
著者
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Sakaguchi Takeshi
Storage Media Systems Development Center Matsushita Electric Industrial Co. Ltd.
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KAWAGUCHI Yuko
Storage Media Systems Development Center, Matsushita Electric Industrial Co., Ltd.
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Birukawa Masahiro
Storage Media Systems Development Center, Matsushita Electric Industrial Co., Ltd.
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Hino Yasumori
Storage Media Systems Development Center, Matsushita Electric Industrial Co., Ltd.
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Shiratori Tsutomu
DM Project, Core Technology Development Headquarters, Canon Inc.
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Hiroki Tomoyuki
DM Project, Core Technology Development Headquarters, Canon Inc.
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Hozumi Yasushi
DM Project, Core Technology Development Headquarters, Canon Inc.
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Murakami Motoyoshi
Storage Media Systems Development Center, Matsushita Electric Industrial Co., Ltd.
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Fujii Eiichi
DM Project, Core Technology Development Headquarters, Canon Inc.
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Fujii E
Dm Project Core Technology Development Headquarters Canon Inc.
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Hino Yasumori
Storage Media Systems Development Center Matsushita Electric Industrial Co. Ltd.
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Kawaguchi Yuko
Storage Media Systems Development Center Matsushita Electric Industrial Co. Ltd.
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Hozumi Yasushi
Dm Project Core Technology Development Headquaters Canon Inc.
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Hiroki Tomoyuki
Dm Project Core Technology Development Headquarters Canon Inc.
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Birukawa M
Matsushita Electric Industrial Co. Ltd. Osaka
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Birukawa Masahiro
Storage Media Systems Development Center Matsushita Electric Industrial Co. Ltd.
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Shiratori Tsutomu
Dm Project Core Technology Development Headquarters Canon Inc.
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Murakami M
Matsushita Electric Industrial Co. Ltd. Osaka
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Fujii Eiichi
Dm Project Core Technology Development Headquaters Canon Inc.
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