Electronic Band Structure of In-Plane Ferroelectric van der Waals β′-In<sub>2</sub>Se<sub>3</sub>
Electronic Band Structure of In-Plane Ferroelectric van der Waals β′-In<sub>2</sub>Se<sub>3</sub>
Layered indium selenides (In2Se3) have recently been discovered to host robust out-of-plane and in-plane ferroelectricity in the α- and β′-phases, respectively. In this work, we utilize angle-resolved photoelectron spectroscopy to directly measure the electronic band structure of β′-In2Se3 and compare to hybrid density functional theory (DFT) calculations. In agreement with …