fig12
Figure 12. (A) COMSOL simulation of electric field distribution along the z-direction in a ferroelectric slab with a head-to-head domain wall perpendicular to the polar axis, assuming a remanent polarization of 100 μC/cm2. The field concentrates at the wall. (B) Line scan at the center of the domain wall shows a peak electric field of 100 MV/cm, assuming full polarization is maintained to the wall edge[4].
