Patent ID: 6754100
Filing Date: 2004-06-22
Classification: B82Y,G11C,H01F

Abstract:
A nonvolatile magnetic memory comprising:a spin transfer torque magnetization reversal layer including a first ferromagnetic layer, a second ferromagnetic layer, and a nonmagnetic layer sandwiched between said first magnetic layer and said second magnetic layer; a tunnel magnetoresistive layer including said second ferromagnetic layer, a third ferromagnetic layer, and a tunnel barrier sandwiched between said second magnetic layer and said third magnetic layer; a pn diode; a word line electrically connected to the pn diode; and a bit line electrically connected to said third ferromagnetic layer, wherein a magnetization direction of said second ferromagnetic layer is changed by a spin current passing through said spin transfer torque magnetization reversal layer, and wherein said tunnel magnetoresistive layer is incurred a tunnel magnetoresistance effect by a spin current passing from said second ferromagnetic layer to said third ferromagnetic layer.