%0 Journal Article
%T Ultrafast switching of the electric polarization and magnetic chirality in BiFeO3 by an electric field
%A Satadeep Bhattacharjee
%A Dovran Rahmedov
%A Dawei Wang
%A Jorge Iniguez
%A Laurent Bellaiche
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevLett.112.147601
%X Using a first-principles-based effective Hamiltonians within molecular dynamics simulations, we discover that applying an electric field that is opposite to the initial direction of the polarization results in a switching of both the polarization and the magnetic chirality vector of multiferroic BiFeO3 at an ultrafast pace (namely of the order of picoseconds). We discuss the origin of such a double ultrafast switching, which is found to involve original intermediate magnetic states and may hold promise for designing various devices.
%U http://arxiv.org/abs/1403.0671v1