  A bistable micro-mechanical system based on magnetic repulsion is presented
exploring its applicability as memory unit where the state of the bit is
encoded in the rest position of a deflected cantilever. The non-linearity
induced on the cantilever can be tuned through the magnetic interaction
intensity between the cantilever magnet and the counter magnet in terms of
geometrical parameters. A simple model provides a sound prediction of the
behavior of the system. Finally we measured the energy required to store a bit
of information on the system that, for the considered protocols, is bounded by
the energy barrier separating the two stable states.
