Electrical Manipulation of Nanomagnets
  We demonstrate a possibility to manipulate the magnetic coupling between two nanomagnets with a help of ac electric field. In the scheme suggested the magnetic coupling in question is mediated by a magnetic particle contacting with both of the nanomagnets through the tunnel barriers. The electric field providing a successive suppression of the barriers leads to pumping of magnetization through the mediating particle. Time dependent dynamics of the particle magnetization allows to to switch between ferro- and antiferromagnetic couplings. 
L.Y. Gorelik, R.I. Shekhter, V.Vinokur, D.Feldman, V.Kozub, and M.   Jonson