发明授权
- 专利标题： Magnetic recording head having spin wave oscillator which locally heats a recording track
- 专利标题（中）： 磁记录头具有本地加热记录轨道的自旋波振荡器
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申请号： US12332393申请日： 2008-12-11
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公开(公告)号： US07817375B2公开(公告)日： 2010-10-19
- 发明人: Rie Sato , Koichi Mizushima
- 申请人： Rie Sato , Koichi Mizushima
- 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, L.L.P.
- 优先权： JP2004-099385 20040330; JP2004-187124 20040625
- 主分类号： G11B5/39
- IPC分类号： G11B5/39 ; G11B5/10 ; G11B5/127
摘要：
A magnetic recording head includes a spin wave oscillator having a lamination film including a first magnetic layer and a second magnetic layer, and a pair of electrodes adapted to inject a current between the first magnetic layer and the second magnetic layer to generate a spin wave in one of the first magnetic layer and the second magnetic layer; and a recording magnetic pole provided on one side with the spin wave oscillator, the spin wave oscillator locally heating the recording track prior to recording by the recording magnetic pole.
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