The present invention provides for a tunneling anisotropic magnetoresistive (TAM)
device and a method of operation. An embodiment of the device provides for a magnetic
conducting sense layer with a fixed edge spin and a center magnetization direction,
a magnetic conducting storage layer with a fixed edge spin and a center magnetization
direction, and a nonmagnetic nonconducting barrier layer sandwiched between the
sense layer and the storage layer. In one embodiment, the two center magnetization
directions are aligned with a hard axis of the device, and the center magnetization
direction of the storage layer is indicative of a logical state of the device.
A larger magnetic field is required to invert the center magnetization direction
of the storage layer than is required to invert the center magnetization direction
of the sense layer.