Non-local switching of polar domain network in twisted boron nitride layers.

Recently, a new form of ferroelectricity, known as "Moiré ferroelectricity", has been discovered in two-dimensional materials. In this system, polarization domains arise from broken inversion symmetry at twisted interfaces. Unlike conventional ferroelectrics, Moiré ferroelectricity may display distinct switching characteristics due to the presence of a domain network. By applying a local electrical field using a biased atomic force microscope tip, we observed non-local switching of the domain network via scanning Kelvin probe force microscopy. Furthermore, the dynamic evolution of the polarization domains was captured through raster scanning in subsequent scans.