Two-Dimensional Crystals of Transition Metal Dichalcogenides : From Superconductivity to Circularly Polarized Light Source(Research)

Abstract

Transition metal dichalcogenide (TMD) is attracting growing interest as two dimensional crystals beyond graphene. Of particular importance is an optoelectronic functionality based on valleytronics, which is strongly coupled with spintronics through the spin-orbit interactions, making TMD a quite unique system distinct from graphene. In this article, we review our latest findings of novel functionalities in TMD materials combined with field effect transistor device architecture, including electric field induced superconductivity and electrically switchable chiral light source, both of which are missing in graphene.