MIT researchers have demonstrated that a tungsten ditelluride-based transistor combines two different electronic states of matter. A transistor based on the 2-D material tungsten ditelluride (WTe2) sandwiched between boron nitride can switch between two different electronic states — one that conducts current only along its edges, making it a topological insulator, and one that conducts … Continue reading A transistor that performs as both topological insulator and superconductor