Tuesday, May 01, 2012
4:00 PM -
5:00 PM
Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Applied Physics Seminar
Series: Applied Physics Seminar Series
Graphene Mechanical Resonators and Applications
Changyao Chen,
Columbia University,
Made of only one sheet of carbon atoms, graphene is the thinnest yet strongest material ever tested. Guaranteed by the superior electrical and excellent mechanical properties, graphene is the ideal building block for NanoElectroMechanical Systems (NEMS). However, the small signal associated with the miniature size makes efficient electrical measurement very challenging.
In my talk, I will first discuss different electrical readout techniques for graphene mechanical resonators, and their properties upon changes in temperature and mass. Then, I will demonstrate the applications of graphene resonators for two purposes: one as sensitive tools to measure the chemical potential oscillation of graphene in applied magnetic field, and another as active elements to build self-sustaining mechanical oscillators.
Event Sponsors:
For more information, please contact Christy Jenstad by phone at 8124 or by email at [email protected].