fig5

Figure 5. SHG Insights in ferroic thin film textures. (A) SHG measurements of two different types of ferroelectric textures in BiFeO₃ thin epitaxial layers, reprinted with permission from Trassin et al. Copyright 2015 by Wiley-VCH^[50]. Panel (B) top images: piezoresponse force images of a crystal. Bottom images, related SHG images evidencing the non-Ising type of the ferroelectric domain walls, reprinted with permission from Chérifi-Hertel et al. Copyright 2017 by the Authors under Creative Commons Attribution 4.0 International License, published by the Nature Publishing Group^[51]. Panel (C) SHG study of BiFeO₃ thin epitaxial layers imaging both the ferroelectric and antiferromagnetic domains, reprinted with permission from Chauleau et al. Copyright 2017 by the Nature Publishing Group^[54].