Ultra-High-Density Ferroelectric Array Formed by Sliding Ferroelectric Moiré Superlattices

In-Plane Sliding Ferroelectricity Realized in Penta-PdSe2/Penta-PtSe2 van der Waals Heterostructure

“…A comparison is presented in Table for the polarization switching energy barrier and ferroelectric polarization value of the penta-PdSe 2 /penta-PtSe 2 heterostructure with those of several other sliding ferroelectric materials studied previously. One can see that the penta-PdSe 2 /penta-PtSe 2 heterostructure possesses a lower polarization switching energy barrier and a larger ferroelectric polarization value than h-BN bilayer, MoS 2 bilayer, SnS/SnS 2 , and GeS 2 /CuInP 2 S 6 , suggesting its feasibility of ferroelectric switching under ambient conditions.…”