Manipulation of magnetically ordered states by electrical means is a promising approach towards novel spintronics
devices. We report on the electric control of surface magnetism in Cr<sub>2</sub>O<sub>3</sub> thin films and uniaxial anisotropy in
ferroelectric/ferromagnetic heterostructures, respectively. Artificial magnetoelectricity is realized in a BaTiO<sub>3</sub>/Fe
heterostructure. Here, thermally induced coercivity changes of the Fe hysteresis loop are used to derive the stress
imposed by the ferroelectric BaTiO<sub>3</sub> substrate on the adjacent Fe film. Electrically induced coercivity changes give rise
to a giant magnetoelectric susceptibility in the vicinity of the magnetic coercive field.