Patent ID: 8416611
Filing Date: 2013-04-09
Classification: B82Y,G11C,H01F,H01L

Abstract:
1. A magnetoresistance effect element, comprising: a magnetization free layer; a spacer layer provided adjacent to said magnetization free layer; a first magnetization fixed layer provided adjacent to said spacer layer on a side opposite to said magnetization free layer; and at least two second magnetization fixed layers provided adjacent to said magnetization free layer, wherein said magnetization free layer, said first magnetization fixed layer, and said at least two second magnetization fixed layers respectively have magnetization components in a direction substantially perpendicular to film surfaces thereof, wherein said magnetization free layer includes: wherein one of said two magnetization fixed portions is adjacent to one of said at least two second magnetization fixed layers, wherein the other of said two magnetization fixed portions is adjacent to another of said at least two second magnetization fixed layers, wherein magnetizations of said two magnetization fixed portions constituting said magnetization free layer are fixed substantially antiparallel to each other in directions substantially perpendicular to the film surface thereof, wherein said domain wall motion portion is provided with magnetic anisotropy in a direction perpendicular to the film surface, and wherein said at least two second magnetization fixed layers have coercive fields different from each other.