Patent ID: 8164946
Filing Date: 2012-04-24
Classification: B82Y,G11C,H01F,Y10S

Abstract:
1. A magnetic memory element comprising a pair of electrodes, a junction layer, at least one carbon nanotube, and at least one nanowire, wherein said at least one nanowire is made of a ferromagnetic material and extends through a hole of each said at least one carbon nanotube with both ends being electrically connected to said pair of electrodes, respectively, said junction layer is made of a non-magnetic material and disposed between one of said pair of electrodes and one end of each said at least one nanowire, said one of said pair of electrodes is made of a ferromagnetic material, magnetization of said at least one nanowire is reversed by spin injection performed through said junction layer with said one of said pair of electrodes, and when a DC bias current and a detection current having a frequency coinciding with a magnetic resonance frequency of said nanowire are applied in a superimposed manner, between said electrodes, within a range not reaching a critical current density of the magnetization reversal, said pair of electrodes have a voltage corresponding to a magnetization direction of said nanowire.