Patent ID: 6828785
Filing Date: 2004-12-07
Classification: B82Y,G01R,H01F

Abstract:
A magneto-resistive effect element, said magneto-resistive effect element being a giant magneto-resistive effect element, comprising:a lamination layer structure portion having at least a free layer the magnetization of which is rotated in response to an external magnetic field, a fixed layer, an antiferromagnetic layer for fixing the magnetization of said fixed layer and a nonmagnetic layer interposed between said free layer and said fixed layer, wherein a sense current flows to substantially a lamination layer direction of said lamination layer structure portion, and said lamination layer structure portion has disposed thereon an electric conduction restricting layer in which very small electric conduction areas are dispersedly formed across a path of said sense current, and wherein said electric conduction restricting layer is one of a plurality of electric conduction restricting layers disposed at other positions than at an interface of the layers constituting said lamination layer structure portion.