Patent ID: 8338004

Claim:
A magnetic tunnel junction structure, comprising: a first magnetic layer having a fixed magnetization direction; a second magnetic layer having a body centered cubic (BCC) lattice structure and having a reversible magnetization direction; a non-magnetic layer formed between the first magnetic layer and the second magnetic layer; a third magnetic layer having a face centered cubic (FCC) or hexagonal close-packed (HCP) lattice structure and having a perpendicular magnetic anisotropic energy thereof larger than an in-plane magnetic anisotropic energy thereof; and a crystal-structure separation layer formed between the second magnetic layer and the third magnetic layer for separating a crystallographic structure between the second and the third magnetic layers and having an amorphous structure; wherein a magnetization direction of the second magnetic layer is inclined with respect to a plane of the second magnetic layer with an angle (θ) of the magnetization direction of −30°≦θ<0° or 0°<θ≦30°, wherein a magnetization easy axis of the third magnetic layer is oriented in a direction perpendicular to a plane of the third magnetic layer, and wherein a magnetic coupling is made between the second magnetic layer and the third magnetic layers.