Patent ID: 7750390

Claim:
A spin FET comprising: a magnetic pinned layer whose magnetization direction is fixed; a magnetic free layer whose magnetization direction is changed; a channel between the magnetic pinned layer and the magnetic free layer; a gate electrode provided on the channel via a gate insulation layer; a multiferroic layer having a magnetic coupling with the magnetic free layer, which is provided on the magnetic free layer, a magnetization direction of the multiferroic layer being changed by an electric field within the multiferroic layer; and a driver/sinker which supplies a spin injection current to the magnetic free layer and the multiferroic layer, wherein the multiferroic layer generates spin polarization electrons and generates the electric field by the spin injection current, the magnetization reversal of the magnetic free layer is executed by the spin polarization electrons, and the magnetic coupling between the multiferroic layer and the magnetic free layer.