发明授权
- 专利标题： Current-perpendicular-to-plane-type magnetoresistive device, and magnetic head and magnetic recording-reproducing apparatus using the same
- 专利标题（中）： 电流垂直平面型磁阻器件，以及使用其的磁头和磁记录再现装置
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申请号： US10060247申请日： 2002-02-01
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公开(公告)号： US06905780B2公开(公告)日： 2005-06-14
- 发明人: Hiromi Yuasa , Masatoshi Yoshikawa , Yuzo Kamiguchi , Hitoshi Iwasaki , Masashi Sahashi
- 申请人： Hiromi Yuasa , Masatoshi Yoshikawa , Yuzo Kamiguchi , Hitoshi Iwasaki , Masashi Sahashi
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2001-025736 20010201; JP2001-246613 20010815
- 主分类号： G11B5/012
- IPC分类号： G11B5/012 ; G11B5/39 ; H01F10/32 ; H01L43/10 ; G11B5/127
摘要：
A magnetoresistive device includes a magnetization pinned layer, a magnetization free layer, a nonmagnetic intermediate layer formed between the magnetization pinned layer and the magnetization free layer, and electrodes allowing a sense current to flow in a direction substantially perpendicular to the plane of the stack including the magnetization pinned layer, the nonmagnetic intermediate layer and the magnetization free layer. At least one of the magnetization pinned layer and the magnetization free layer is substantially formed of a binary or ternary alloy represented by the formula FeaCobNic (where a+b+c=100 at %, and a≦75 at %, b≦75 at %, and c≦63 at %), or formed of an alloy having a body-centered cubic crystal structure.
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