697056.fig.005
Figure 5: A two-phase multiferroic nanomagnet shaped like an elliptical cylinder. It consists of a magnetostrictive layer elastically coupled to a piezoelectric layer. There are clamps (not shown) that prevent expansion/contraction of the multiferroic in the -direction. An electrostatic potential applied across the piezoelectric generates uniaxial strain in that layer, which is transferred almost entirely to the magnetostrictive layer if the latter layer is much thinner than the former. This will generate uniaxial stress in the magnet and rotate its magnetization away from the stable -axis (easy axis) towards the -axis (in-plane hard axis), ultimately resulting in the magnetization flipping if the voltage is turned off as soon as the magnetization vector enters the - plane.