Sliding-induced high polarization and multistate ferroelectricity in a van der Waals BP/BP/GaN/GaN heterostructure
Sliding ferroelectricity has attracted significant research interest due to its ultralow switching barrier and its presence in diverse systems, such as van der Waals (vdW) layered materials. Its polarization is strongly dependent on the material type, layer number, and stacking sequence. In this work, we investigate 27...