| 摘要 |
A magnetoresistive effect element includes a magnetization fixed layer having substantially fixed magnetization direction. A magnetization variable layer has a variable magnetization direction, consists of a magnetic alloy that has a BCC structure and is expressed by Fe<SUB>1-x-y</SUB>Co<SUB>x</SUB>Ni<SUB>y </SUB>(0<=x+y<=1, 0<=x<=1, 0<=y<=1), and contains at least one additive element of V, Cr, and Mn in a range of 0<a<=20 at % (a is a content). An intermediate layer is disposed between the magnetization fixed layer and the magnetization variable layer and consists of a nonmagnetic material. The magnetization direction of the magnetization variable layer is switched by a bidirectional current passing through the magnetization fixed layer, the intermediate layer, and the magnetization variable layer.
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