Patent ID: 8456903
Filing Date: 2013-06-04
Classification: B82Y,G11C,H01F,H01L

Abstract:
1. A magnetic element comprising: a ferromagnetic pinned layer having a pinned magnetization orientation, a ferromagnetic free layer having a changeable magnetization orientation, and a non-magnetic spacer layer therebetween; and a porous non-electrically conducting current confinement layer between the ferromagnetic free layer and the ferromagnetic pinned layer, the porous non-electrically conducting current confinement layer present between the ferromagnetic free layer and the non-magnetic spacer layer and providing an interface between the ferromagnetic free layer and the non-magnetic spacer layer, or the porous non-electrically conducting current confinement layer present between the ferromagnetic pinned layer and the non-magnetic spacer layer and providing an interface between the ferromagnetic pinned layer and the non-magnetic spacer layer, with the porous non-electrically conducting current confinement layer having a thickness of 2 to 20 Angstroms, and comprising a non-electrically conducting material with a plurality of orderly arranged pores therein.