| 摘要 |
A magnetoresistance effect device includes a magnetized free layer formed of a ferromagnetic material, a magnetized fixing layer formed of a ferromagnetic material and having a crystal grain boundary, a nonmagnetic layer provided between the magnetized free layer and the magnetized fixing layer, and an antiferromagnetic layer provided on one surface of the magnetized fixing layer, which is opposed to a surface of the nonmagnetic layer. The magnetized fixing layer has an element which is segregated into the crystal grain boundary to prevent a material of the antiferromagnetic layer from diffusing.
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