发明授权
- 专利标题： Magnetoresistive head with first and second pairs of antiferromagnetic films imparting magnetic bias to first and second magnetization free layers and perpendicular magnetic recording-reproducing apparatus
- 专利标题（中）： 具有向第一和第二磁化自由层赋予磁偏置的第一和第二对反铁磁膜的磁阻磁头和垂直的磁记录再现装置
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申请号： US10968958申请日： 2004-10-21
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公开(公告)号： US07016169B2公开(公告)日： 2006-03-21
- 发明人: Masatoshi Yoshikawa , Masayuki Takagishi , Yuzo Kamiguchi , Hiromi Yuasa
- 申请人： Masatoshi Yoshikawa , Masayuki Takagishi , Yuzo Kamiguchi , Hiromi Yuasa
- 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： JP2001-025734 20010201
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
A magnetoresistive head has a magnetoresistive film including first and second magnetization free layers, an intermediate layer sandwiched between the first and second magnetization free layers, an underlayer and a protective layer, a first electrode, a second electrode, a pair of first antiferromagnetic films, and a pair of second antiferromagnetic films. The first electrode is connected with the underlayer and the second electrode is connected with the protective layer, the electrodes allowing a current to flow in a direction substantially perpendicular to the plane of the magnetoresistive film. The pair of first antiferromagnetic films imparts a magnetic bias to the first magnetization free layer in a predetermined direction, and the pair of second antiferromagnetic films imparts a magnetic bias to the second magnetization free layer in a predetermined direction.
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