Pinning Effect Induced by Underlayer in TbFeCo Magnetic Recording Media
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概要
- 論文の詳細を見る
Pinning effect induced by a grainlike structure on top of a TbFeCo recording layer with an Al or Ag underlayer is investigated. We confirm that the pinning effect depends on the surface structure of the recording layer as well as the underlayer. The Al-underlayered TbFeCo medium shows higher recording density during thermally assisted magnetic recording and higher coercivity than those of the Ag-underlayered one. We can observe that only the Al-underlayered TbFeCo medium has the grainlike structure on top of the TbFeCo recording layer, which reflects well a grainlike structure on the Al underlayer's surface. It indicates that the surface profile of not only the underlayer but also the TbFeCo recording layer laminated onto the underlayer is necessary for inducing the strong pinning effect in the TbFeCo magnetic recording media.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-01-25
著者
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Kojima Kunio
Advanced Technology Research Laboratories Corporate R&d Group Sharp Corporation
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Takahashi Akira
Advanced Technology Research Laboratories Corporate R&d Group Sharp Corporation
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Sato Junichi
Advanced Technology Research Laboratories Sharp Corporation
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Yamamoto Masahiko
Division Of Liveral Arts And Science Faculty Of Arts Tokyo Polytechnic University
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Fuji Hiroshi
Advanced Technology Research Laboratories Sharp Corp.
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Nakatani Ryoichi
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Murakami Yoshiteru
Advanced Technology Research Laboratories, Sharp Corporation, Tenri, Nara 632-8567, Japan
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Murakami Yoshiteru
Advanced Technology Research Laboratories, Corporate R&D Group, SHARP Corporation, 2613-1 Ichinomoto-cho, Tenri, Nara 632-8567, Japan
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Kojima Kunio
Advanced Technology Research Laboratories, Sharp Corporation, Tenri, Nara 632-8567, Japan
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Fuji Hiroshi
Advanced Technology Research Laboratories, Sharp Corporation, Tenri, Nara 632-8567, Japan
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