Fig. 5: Moiré pattern under an applied electric field.
From: Edge polarization topology integrated with sliding ferroelectricity in Moiré system

A V-Amp. images under different biases. B Expansion (composed of BA stacking) and contraction (composed of AB stacking) of ferroelectric domains under an electric field of 0.5 V/Å, while the area of AA stacking does not show significant change. C In-plane atomic displacement of upper layer after structural reconstruction under the effect of electric field.