Patent ID: 9105830
Filing Date: 2015-08-11
Classification: G11C,H01F,H01L

Abstract:
1. A magnetic memory comprising: a plurality of dual magnetic junctions, each of the plurality of dual magnetic junctions including a first reference layer, a first nonmagnetic spacer layer, a free layer, a second nonmagnetic spacer layer and a second reference layer, the free layer being magnetic and residing between the first nonmagnetic spacer layer and the second nonmagnetic spacer layer, the first nonmagnetic spacer layer being between the first reference layer and the free layer, the second nonmagnetic spacer layer being between the second reference layer and the free layer; and at least one spin-orbit interaction (SO) active layer adjacent to the first reference layer of each of the plurality of dual magnetic junctions, the at least one SO active layer configured to exert a SO torque on the first reference layer due to a current passing through the at least one SO active layer substantially perpendicular to a direction between the at least one SO active layer and the first reference layer and to exert no SO torque on the first reference layer in the absence of the current, the free layer configured to be switchable using a spin transfer write current driven through the dual magnetic junction, the first reference layer having a magnetic moment configured to be changeable by at least the SO torque.