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.
@article{arxiv.cond-mat/0211563,
title = {Electrical Manipulation of Nanomagnets},
author = {L. Y. Gorelik and R. I. Shekhter and V. Vinokur and D. Feldman and V. Kozub and M. Jonson},
journal= {arXiv preprint arXiv:cond-mat/0211563},
year = {2009}
}