A method and system for providing a magnetic element capable of being written
using
spin-transfer effect while generating a high output signal and a magnetic memory
using the magnetic element are disclosed. The magnetic element includes a first
ferromagnetic pinned layer, a nonmagnetic spacer layer, a ferromagnetic free layer,
an insulating barrier layer and a second ferromagnetic pinned layer. The pinned
layer has a magnetization pinned in a first direction. The nonmagnetic spacer layer
is conductive and is between the first pinned layer and the free layer. The barrier
layer resides between the free layer and the second pinned layer and is an insulator
having a thickness allowing electron tunneling through the barrier layer. The second
pinned layer has a magnetization pinned in a second direction. The magnetic element
is configured to allow the magnetization of the free layer to change direction
due to spin transfer when a write current is passed through the magnetic element.
