Abstract
We have investigated the ultrafast electric and magnetic response of multiferroic induced by irradiation of a femtosecond laser pulse. By using the polarization selection rules of crystallographic and magnetic second-harmonic generation, the dynamics of electric polarization and toroidal moment were simultaneously and separately detected on a femtosecond time scale. The magnetization dynamics was derived by comparing the dynamics of and . We demonstrate the availability of time-resolved nonlinear optical techniques for the dynamical probe of multiple degrees of freedom in multiferroics.
- Received 20 February 2009
DOI:https://doi.org/10.1103/PhysRevB.79.140411
©2009 American Physical Society