Patent ID: 7351483

Claim:
A structure, comprising: a first amorphous magnetic layer including material selected from the group consisting of ferromagnetic materials and ferrimagnetic materials; a second amorphous magnetic layer including material selected from the group consisting of ferromagnetic materials and ferrimagnetic materials; at least one tunnel barrier selected from the group of tunnel barriers consisting of MgO and Mg—ZnO, wherein the tunnel barrier is located between the first amorphous magnetic layer and the second amorphous magnetic layer; and an antiferromagnetic layer that exchange biases the second amorphous magnetic layer, wherein the first amorphous magnetic layer, the second amorphous magnetic layer, and the tunnel barrier are in proximity with each other and form a magnetic tunnel junction, thereby enabling spin-polarized current to pass between the first and second amorphous magnetic layers through the tunnel barrier, the magnetic tunnel junction having a tunnel magnetoresistance of at least 100% at room temperature.