Patent ID: 8498149

Claim:
A non-volatile magnetic memory element comprising: a bottom electrode coupled to the bit line; a seeding layer formed on top of the bottom electrode; a graded free layer formed on top of the seeding layer, the graded free layer including a boron (B) with varied composition through the graded free layer; a tunnel layer formed on top of the graded free layer; a graded fixed layer formed on top of the tunnel layer, the graded fixed layer being of varying composition such that Ms in the composition of the graded fixed layer is greater in areas of the graded fixed layer that are adjacent to the tunnel layer and the Ms decreases in the remaining areas of the graded fixed layer and is the lowest in areas of the graded fixed layer that are farthest from the tunnel layer; an anti-ferromagnetic pinning layer formed on top of the graded fixed layer; a cap layer formed on top of the anti-ferromagnetic pinning layer; and a top electrode formed on top of the cap layer.