发明授权
- 专利标题： High-frequency magnetic field generation element and magnetic head
- 专利标题（中）： 高频磁场发生元件和磁头
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申请号： US13678062申请日： 2012-11-15
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公开(公告)号： US08724261B2公开(公告)日： 2014-05-13
- 发明人: Hirofumi Suto , Tao Yang , Tazumi Nagasawa , Kiwamu Kudo , Rie Sato , Koichi Mizushima
- 申请人： Hirofumi Suto , Tao Yang , Tazumi Nagasawa , Kiwamu Kudo , 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： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： JP2011-251144 20111116
- 主分类号： G11B5/31
- IPC分类号： G11B5/31
摘要：
According to one embodiment, a high-frequency magnetic field generation element includes a first fixed layer, a first free layer, and a second free layer. A direction of a magnetization of the first fixed layer is fixed and has a component parallel to a first direction. A direction of a magnetization of the first free layer is variable and has a component orthogonal to the first direction. A direction of a magnetization of the second free layer is variable and has a component orthogonal to the first direction. The first fixed layer is provided between the first free layer and the second free layer. The magnetizations of the first free layer and the second free layer oscillate. A rotation direction of the magnetization of the first free layer is opposite to a rotation direction of the magnetization of the second free layer.
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