A spin-
orbit moment magnetic
random access memory (MORAM) and method for controlling an artificial antiferromagnetic free layer with ferroelectric
metal are disclosed. The MORAM comprises multiple memory cells, with the free
magnetic layer being an artificial antiferromagnetic structure comprising a first
magnetic layer, a non-magnetically coupled layer formed on the first
magnetic layer, and a second magnetic layer formed on the non-magnetically coupled layer. The ferroelectric
metal layer simultaneously possesses ferroelectric polarization characteristics and a spin-
orbit coupling effect, generating a spin-
orbit moment when an in-plane current is applied to drive the
magnetic moment reversal of the free magnetic layer. Simultaneously, the magnetic
coupling state of the artificial antiferromagnetic structure is controlled by the ferroelectric polarization
electric field. The simultaneous presence of ferroelectric polarization and spin-orbit
coupling characteristics in the ferroelectric
metal layer enables both ferroelectric control and spin-orbit moment writing functions, thereby simplifying the device structure, reducing the
write current density required for
magnetic moment reversal, and lowering device
power consumption.