Patent ID: 7242045

Claim:
A magnetic element comprising: a pinned layer; a spacer layer, the spacer layer being nonmagnetic; and a free layer having a free layer magnetization, the spacer layer residing between the pinned layer and the free layer, the free layer including at least one of a doped ferromagnetic material and a multilayer, the doped ferromagnetic material including at least one ferromagnetic material that is diluted with at least one of at least one nonmagnetic material and ferrimagnetically doped such that the free layer has a low saturation magnetization; wherein if the free layer includes the at least one ferromagnetic material that is diluted with the at least one nonmagnetic material, then the free layer includes at least CoX, FeX, CoFeX, NiFeX, CoXY, FeXY, CoFeXY, NiFeXY, and/or CoNiFeXY where X or Y is Cr, Cu, Au, B, Nb, Mo, Pt, Pd, Ta, Rh, Ru, Ag, TaN, CuN, TaCuN, and/or CoFeX where X is Cr, Cu, Au, Nb, Mo, Pt, Pd, Ta, Rh, Ru, Ag, TaN, CuN, and TaCuN; wherein the magnetic element is configured to allow the free layer magnetization to be switched due to spin transfer when a write current is passed through the magnetic element.