Moiré engineering of spin–orbit coupling in twisted platinum diselenide

Abstract We study the electronic structure and correlated phases of twisted bilayers platinum diselenide using large-scale ab initio simulations combined with functional renormalization group. PtSe 2 is a group-X transition metal dichalcogenide, which hosts emergent flat bands at small twist angles in bilayer. Remarkably, we find that Moiré engineering can be used to tune strength Rashba spin–orbit interactions, altering behavior novel manner. reveal an effective triangular lattice twist-controlled ratio between kinetic coupling (SOC) scales realized. Even dominant SOC accessed this way discuss consequences for interaction driven phase diagram, features pronounced exotic superconducting entangled spin-charge density waves.