Spin torque magnetic logic device having at least one input element and an
output element. Current is applied through the input element(s), and the
resulting resistance or voltage across the output element is measured.
The input element(s) include a free layer and the output element includes
a free layer that is electrically connected to the free layer of the
input element. The free layers of the input element and the output
element may be electrically connected via magnetostatic coupling, or may
be physically coupled. In some embodiments, the output element may have
more than one free layer.