Invention Grant
- Patent Title: CPP spin valve with long spin diffusion length AP1 layers
- Patent Title (中): CPP自旋阀具有长自旋扩散长度AP1层
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Application No.: US11944082Application Date: 2007-11-21
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Publication No.: US07679866B2Publication Date: 2010-03-16
- Inventor: Matthew Joseph Carey , Shekar Chandrashekariaih , Stefan Maat , Jeffrey Robinson Childress
- Applicant: Matthew Joseph Carey , Shekar Chandrashekariaih , Stefan Maat , Jeffrey Robinson Childress
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Main IPC: G11B5/39
- IPC: G11B5/39
Abstract:
A magnetoresistive sensor having a pinned layer that includes a first magnetic layer (AP1) a second magnetic layer (AP2) and an antiparallel coupling layer sandwiched between the AP1 and AP2 layers. The AP1 layer is adjacent to a layer of antiferromagnetic material (AFM layer) and is constructed so as to have a long spin diffusion length. The long spin diffusion length of the AP1 layer minimizes the negative GMR contribution of the AP1 layer, thereby increasing the overall GMR effect of the sensor.
Public/Granted literature
- US20080074807A1 CPP SPIN VALVE WITH LONG SPIN DIFFUSION LENGTH AP1 LAYERS Public/Granted day:2008-03-27
Information query
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