Magnetic recording medium, non-magnetic alloy film and sputtering target

发明授权

US06174598B1 Magnetic recording medium, non-magnetic alloy film and sputtering target 失效

标题翻译：磁记录介质，非磁性合金膜和溅射靶

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专利标题： Magnetic recording medium, non-magnetic alloy film and sputtering target
专利标题（中）： 磁记录介质，非磁性合金膜和溅射靶
申请号： US09075228

申请日： 1998-05-11
公开(公告)号： US06174598B1

公开(公告)日： 2001-01-16
发明人: Mikio Suzuki , Kazunori Onami , Hiroshi Kanazawa , Hiroshi Sakai
申请人： Mikio Suzuki , Kazunori Onami , Hiroshi Kanazawa , Hiroshi Sakai
优先权： JP9-267469 19970930; JP9-307658 19971110
主分类号： G11B566
IPC分类号： G11B566

Magnetic recording medium, non-magnetic alloy film and sputtering target

摘要：

A low noise magnetic recording medium having a high coercive force and adapted for use with a MR head. The magnetic recording medium comprises a non-magnetic substrate having thereon a first non-magnetic underlayer and a magnetic layer comprising a Co alloy provided on the non-magnetic underlayer. The non-magnetic underlayer comprises an alloy represented by the formula: (Ni50Al)100−XMX, wherein M is one of Cr (X=1-40 at %), Mo (X=1-50 at %), W (X=1-60 at %), V (X=1-35 at %), Zr (X=1-25 at %), Nb (X=1-35 at %) and Pd (X=1-25 at %), and when M includes two or more of Cr, Mo, W, V, Zr, Nb and Pd, X is from 1 to 60 at %.

摘要（中）：

一种具有高矫顽力并适用于MR磁头的低噪音磁记录介质。磁记录介质包括其上具有第一非磁性底层的非磁性基底和设置在非磁性底层上的包含Co合金的磁性层。非磁性底层包括由下式（Ni50Al）100-XMX表示的合金，其中M是Cr（X = 1-40原子％），Mo（X = 1-50原子％），W（X （X = 1-35原子％），V（X = 1-35原子％），Zr（X = 1-25原子％），Nb（X = 1-35原子％）和Pd ），当M包含Cr，Mo，W，V，Zr，Nb和Pd中的两种以上时，X为1〜60原子％。

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