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Minimal Thickness Synthetic Antiferromagnetic (SAF) Structure With Perpendicular Magnetic Anisotropy For STT-MRAM
Minimal Thickness Synthetic Antiferromagnetic (SAF) Structure With Perpendicular Magnetic Anisotropy For STT-MRAM
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机译:最小厚度合成反铁磁体(SAF)结构,具有垂直磁各向异性的STT-MRAM
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摘要
A synthetic antiferromagnetic structure for a spintronic device is disclosed and has an FL2/Co or Co alloy/antiferromagnetic coupling/Co or Co alloy/CoFeB configuration where FL2 is a ferromagnetic free layer with intrinsic PMA. Antiferromagnetic coupling is improved by inserting a Co or Co alloy dusting layer on top and bottom surfaces of the antiferromagnetic coupling layer. The FL2 layer may be a L10 ordered alloy, a rare earth-transition metal alloy, or an (A1/A2)n laminate where A1 is one of Co, CoFe, or an alloy thereof, and A2 is one of Pt, Pd, Rh, Ru, Ir, Mg, Mo, Os, Si, V, Ni, NiCo, and NiFe, or A1 is Fe and A2 is V. A method is also provided for forming the synthetic antiferromagnetic structure.
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