Figure 3: Structural polar responses of the TbMnO3 films.
From: Tuning the multiferroic mechanisms of TbMnO3 by epitaxial strain
(a) Temperature dependence of the SHG response of the strained TbMnO3 film. The inset shows the corresponding data for the unstrained film. Both data sets were normalized to the maximum of the SHG intensity of the strained film. (b) SHG experimental geometry: The incoming light polarization of the fundamental beam at ω can be set and the outgoing frequency-doubled response at 2ω can be read out, respectively. The data points correspond to a measurement with the incoming polarization fixed along the (100) direction. The data matches the expected symmetry for a polarization pointing along the a-axis.
