Patent ID: 7531882
Filing Date: 2009-05-12
Classification: B82Y,G01R,G11C,H01F,H01L,Y10T

Abstract:
1. A magnetic element comprising: a first pinned layer; a first barrier layer, the first barrier layer being insulating and having a first thickness that allows tunneling through the first barrier layer; a free layer having a free layer magnetization, the first barrier layer residing between the first pinned layer and the free layer, the free layer having a high perpendicular anisotropy and an out-of-plane demagnetization energy, the high perpendicular anisotropy having a perpendicular anisotropy energy that is at least twenty percent and less than ninety percent of the out-of-plane demagnetization energy; a second barrier layer, the second barrier layer being insulating and having a second thickness that allows tunneling through the second barrier layer; a second pinned layer, the second barrier layer being between the free layer and the second pinned layer; 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.