1207.1304 (J. Qi et al.)

Coexistence of coupled magnetic phases in epitaxial TbMnO$_3$ films
revealed by ultrafast optical spectroscopy    [PDF]

J. Qi, L. Yan, H. D. Zhou, J. -X. Zhu, S. A. Trugman, A. J. Taylor, Q. X. Jia, R. P. Prasankumar

Ultrafast optical pump-probe spectroscopy is used to reveal the coexistence of coupled antiferromagnetic/ferroelectric and ferromagnetic orders in multiferroic TbMnO$_3$ films through their time domain signatures. Our observations are explained by a theoretical model describing the coupling between reservoirs with different magnetic properties. These results can guide researchers in creating new kinds of multiferroic materials that combine coupled FM, AFM and FE properties in one compound.

View original: http://arxiv.org/abs/1207.1304