All-electrical control of a dynamic magnetoelectric effect is demonstrated in a classical multiferroic manganite DyMnO3, a material containing coupled antiferromagnetic and ferroelectric orders. Due to intrinsic magnetoelectric coupling with electromagnons a linearly polarized terahertz light rotates upon passing through the sample. The amplitude and the direction of the polarization rotation are defined by the orientation of ferroelectric domains and can be switched by static voltage. These experiments allow the terahertz polarization to be tuned using the dynamic magnetoelectric effect.
@article{arxiv.1704.01498,
title = {Electric field control of terahertz polarization in a multiferroic manganite with electromagnons},
author = {A. Shuvaev and V. Dziom and Anna Pimenov and M. Schiebl and A. A. Mukhin and A. Komarek and T. Finger and M. Braden and A. Pimenov},
journal= {arXiv preprint arXiv:1704.01498},
year = {2017}
}