THERMALLY TOLERANT PERPENDICULAR MAGNETIC ANISOTROPY COUPLED ELEMENTS FOR SPIN-TRANSFER TORQUE SWITCHING DEVICE

摘要

A magnetic tunnel junction (102), MTJ, comprising: a reference layer (104); a tunnel barrier layer (106); and a composite perpendicular magnetic anisotropy, PMA, free layer (108) overlaying the tunnel barrier layer (106), a PMA assist layer (112), and a PMA coupling layer (110) in direct contact with the PMA free layer (108) and the PMA assist layer (112), wherein the PMA free layer(108) and the PMA assist layer (112) are layers of the same material.