发明授权
US09230597B2 Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL)
有权
具有具有混合heusler场产生层（FGL）的自旋扭矩振荡器（STO）的磁头，
- 专利标题： Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL)
- 专利标题（中）： 具有具有混合heusler场产生层（FGL）的自旋扭矩振荡器（STO）的磁头，
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申请号： US14070401申请日： 2013-11-01
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公开(公告)号： US09230597B2公开(公告)日： 2016-01-05
- 发明人: Masato Shimoto , Keiichi Nagasaka , Masato Matsubara , Yo Sato
- 申请人： HGST Netherlands B.V.
- 申请人地址： NL Amsterdam
- 专利权人： HGST Netherlands B.V.
- 当前专利权人： HGST Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Zilka-Kotab, PC
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B23/00 ; G11B5/31 ; G11B5/00
摘要：
In one embodiment, a magnetic head includes a main pole configured to write data to a magnetic medium, a trailing shield positioned on a trailing side of the main pole, and a STO between the main pole and the trailing shield, wherein the STO includes a laminated structure having a FGL, a spun polarization layer (SPL), and a non-magnetic spacer positioned between the FGL and the SPL, wherein the FGL includes a laminated structure having one or more layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer. In another embodiment, a method is presented for forming such a magnetic head utilizing a FGL that includes a laminated structure baying layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer.
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