Magneto-Optical and Magnetic Properties of DySmCo/Cr Thin Films(Magnetic and Magneto-Optical Recording Materials)
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概要
- 論文の詳細を見る
SmDyCo/Cr films have been prepared by an r. f magnetron sputtering system. The Cr underlayer was found to play an important role in increasing the coercivity (Hc) in the DyCo films because of the formation of granular structure. The effects of Dy substituted by Sm on the magnetic and magneto-optical properties of DyCo/Cr films have been investigated. By analyzing the figure of Ms^*Hc vs. Sm concentration, optimum Sm concentration should be found between 16〜22 at% to obtain maximum Ms^*Hc. With increasing Sm concentration, the Ms is steadily increased, while the Hc is slightly decreased. With the increasing of Sm concentration, the reflectivity (R) and Kerr rotation angle (θ_k) are increased. It is believed that by choosing optimal sputtering conditions and suitable Sm substituting fraction, larger Ms and higher Hc can be obtained at room temperature for (Sm_xDy_<1-x)_<36>Co_<64> films.
- 2004-11-01
著者
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Cheng X
Department Of Electronic Science And Technology Huazhong University Of Science And Technology
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Li Z.
Department Of Materials Science And Engineering Tsinghua University
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Xu X.h.
Department Of Electronic Science And Technology Huazhong University Of Science And Technology
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Jin F.
Department of Electronic Science and Technology, Huazhong University of Science and Technology
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Li Z.Y.
Department of Electronic Science and Technology, Huazhong University of Science and Technology
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Huang Z.X.
Department of Physics, Huazhong Normal University
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Dan X.
Department of Physics, Huazhong Normal University
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Cheng X.M.
Department of Electronic Science and Technology, Huazhong University of Science and Technology
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Lin G.Q.
Department of Electronic Science and Technology, Huazhong University of Science and Technology
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Huang Z
Department Of Physics Huazhong Normal University
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Lin G.q.
Department Of Electronic Science And Technology Huazhong University Of Science And Technology
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Li Z.
Department Of Anatomy And Biology Osaka Medical College
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Jin F
Department Of Electronic Science And Technology Huazhong University Of Science And Technology
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