| 主权项 |
1. A magnetic device comprising:
a pinned polarizing magnetic layer having a magnetic vector parallel to a plane of the pinned polarizing magnetic layer; a free layer, separated from the polarizing magnetic layer by a first non-magnetic layer, having a magnetization vector with a changeable magnetization direction, wherein the changeable magnetization vector has a state that changes to a first state upon application of a first current of a first polarity and to change that changes to a second state upon application of a second current of a second, opposite polarity; and a reference layer having a magnetic vector perpendicular to the plane of the reference layer and separated from the free layer by a second non-magnetic layer, wherein the reference layer and the pinned polarizing magnetic layer balances an amplitude of current required to change the changeable magnetization vector state such that the amplitude of the first current is significantly the same as the amplitude of the second current, and wherein the reference layer comprises: a first magnetic layer that has a first magnetization vector oriented perpendicular to the first magnetic layer; and a second magnetic layer, separated from the first magnetic layer by a reference layer non-magnetic layer, that has a second magnetization vector oriented perpendicular to the second magnetic layer and opposite of the first magnetization vector, wherein widths of the first magnetic layer and the second magnetic layer are different and balance the amplitude of current required to change the changeable magnetization vector state. |
