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Giant magnetoresistive sensor with Cr-Mn-Pt pinned layer and Ni-Fe-Cr seed layer
Giant magnetoresistive sensor with Cr-Mn-Pt pinned layer and Ni-Fe-Cr seed layer
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机译:具有Cr-Mn-Pt固定层和Ni-Fe-Cr籽晶层的巨型磁阻传感器
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摘要
A giant magnetoresistive stack (10) for use in a magnetic read head includes a NiFeCr seed layer (12), a ferromagnetic free layer (14), a nonmagnetic spacer layer (16), a ferromagnetic pinned layer (18), and a CrMnPt pinning layer (20). The ferromagnetic free layer (14) has a rotatable magnetic moment and is positioned adjacent to the NiFeCr seed layer (12). The ferromagnetic pinned layer (18) has a fixed magnetic moment and is positioned adjacent to the CrMnPt pinning layer (20). The nonmagnetic spacer layer (16) is positioned between the free layer (14) and the pinned layer (18). The combination of layers with their respective atomic percentage compositions and thicknesses results in a GMR ratio of at least 12%.
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