Crowell & Moring LLP
Magnetic-field-applying bias film, and magnetic detection element and magnetic detector including the same
A magnetic-field-applying bias film having strong-magnetic-field resistance includes an exchange coupling film. The exchange coupling film includes a ferromagnetic layer and an antiferromagnetic layer stacked on the ferromagnetic layer. The antiferromagnetic layer includes an X(Cr—Mn) layer containing Mn, Cr, and one or more elements X selected from the group consisting of platinum-group elements and Ni. The X(Cr—Mn) layer has a first region relatively close to the ferromagnetic layer and a second region relatively far from the ferromagnetic layer. The Mn content in the first region is higher than the Mn content in the second region.
ALPS ALPINE CO., LTD.
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G01R G01R G01R H01L G01R H01F H01L
additional inventional additional inventional inventional inventional inventional
Masamichi
Saito