Fabrication and characterization of BN-capped graphene resonators

With the advent of graphene, the nano-electromechanical systems (NEMS) have become a reality. Recently the NEMS systems based on 2D atomically thin crystals like graphene, MoS2 to name a few, have garnered a lot of attention owing to their exceptional robustness and ultralow weight. These attributes facilitate actuating and harnessing the mechanical motion of these nano-scale ultralight devices possible and hold lots of promises for the future in different aspects of science namely sensors, novel actuators and so on. In our study, we discuss the fabrication and characterization of the h-BN-graphene stack resonators at temperature 2.5K using vector network analyzer (VNA). The h-BN lends robustness to graphene and provides a clean and flat interface to graphene. The resonators are tunable, and further studies are under progress to investigate their behavior.