Imaging Mechanical Vibrations in Suspended Graphene Sheets
Imaging Mechanical Vibrations in Suspended Graphene Sheets
We carried out measurements on nanoelectromechanical systems based on multilayer graphene sheets suspended over trenches in silicon oxide. The motion of the suspended sheets was electrostatically driven at resonance using applied radio frequency voltages. The mechanical vibrations were detected using a novel form of scanning probe microscopy, which allowed identification …