Invention Grant
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，
- Patent Title: Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL)
- Patent Title (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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Application No.: US14070401Application Date: 2013-11-01
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Publication No.: US09230597B2Publication Date: 2016-01-05
- Inventor: Masato Shimoto , Keiichi Nagasaka , Masato Matsubara , Yo Sato
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Main IPC: G11B5/127
- IPC: G11B5/127 ; G11B23/00 ; G11B5/31 ; G11B5/00
Abstract:
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.
Public/Granted literature
- US20150124347A1 MAGNETIC HEAD HAVING A SPIN TORQUE OSCILLATOR (STO) WITH A HYBRID HEUSLER FIELD GENERATION LAYER (FGL) Public/Granted day:2015-05-07
Information query
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