Electronic bandstructure of in-plane ferroelectric van der Waals ${\beta }^{\prime }-I{n}_{2}S{e}_3$

James L. Collins, Chutian Wang, Anton Tadich +11

Layered indium selenides ($I{n}_{2}S{e}_3$) have recently been discovered to host robust out-of-plane and in-plane ferroelectricity in the $\alpha$ and $\beta$' phases, respectively. In this…