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1. 发明授权

US06479169B1 Low noise magnetic recording media having a interlayer film 失效
标题翻译：具有中间膜的低噪声磁记录介质
公开(公告)号：US06479169B1
公开(公告)日：2002-11-12
申请号：US09527379
申请日：2000-03-16
申请人： Jack Chang , Gina Liang , Wu-Shun Wang , James W. Liang , Hung-Chang W. Huang
发明人： Jack Chang , Gina Liang , Wu-Shun Wang , James W. Liang , Hung-Chang W. Huang
IPC分类号： G11B564
CPC分类号： G11B5/7325 , Y10T428/12854 , Y10T428/12931 , Y10T428/24942 , Y10T428/26 , Y10T428/265
摘要： A magnetic recording medium using a nonmagnetic interlayer in between a Cr-base underlayer and a Co magnetic layer is disclosed. The nonmagnetic interlayer comprises Co1−&agr;−&bgr;−&ggr;−&zgr;Cr&agr;X&bgr;Y&ggr;Z&zgr;. X is a material selected from Ni or Fe so as to substitute a portion of Cr composition. Y is a material selected from materials which can form a solid solution with at least one of list materials consisting of Ni, Fe, Co, and Cr. The Y materials added in the interlayer is to adjust the lattice mismatch of interface between the interlayer and the underlayer to a magnitude so that the interlayer formed on the underlayer at least is a texture layer, an epitaxial layer is best preferred. However, Z is a material which is insoluble with any of above list materials, Cr, Co, X, and Y in a solid state so as to form precipitates, thereby inhibiting the grain growth. In a preferred embodiment, the &agr;, &bgr;, &ggr;, and &zgr; are about 25-41%, 0.1-5%, 0.1-5%, and 0.1-5%, respectively. The interlayer thickness is of between about 0.5-20 nm.
摘要翻译：公开了一种在Cr基底层和Co磁性层之间使用非磁性中间层的磁记录介质。非磁性中间层包含Co1-α-β-γ-zetaCralphaXβγγγZzeta。 X是选自Ni或Fe的材料，以替代Cr组分的一部分。 Y是选自能够与由Ni，Fe，Co和Cr组成的列表材料中的至少一种形成固溶体的材料的材料。添加在中间层中的Y材料是将中间层和下层之间的界面的晶格失配调整到一定程度，使得形成在底层上的中间层至少是纹理层，最好是外延层。然而，Z是与上述任何一种材料不溶的材料，Cr，Co，X和Y为固态，从而形成析出物，从而抑制晶粒生长。在优选的实施方案中，α，β，γ和ζ分别为约25-41％，0.1-5％，0.1-5％和0.1-5％。层间厚度在约0.5-20nm之间。

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