| Description |
Graphene is a 2D material made of a single layer of carbon atoms. Among its many interesting properties, its valence and conduction bands touch at two points in k space called Dirac points. At these points electrons behave like massless Dirac fermions. Graphene has also been theoretically calculated to have a large diamagnetic susceptibility at these Dirac points. With the ultimate goal of investigating graphene's diagmagnetism, in this thesis we describe how to fabricate mechanical resonators based on graphene heterostructures. This includes mechanical exfoliation of boron nitride (BN) and graphene, stacking the BN and graphene, and transferring the stack onto our devices. We have not been able to measure a resonance frequency for these BN-graphene stacks, however, we have been able to do so for graphene mechanical resonators. In this thesis we also discuss how we will move forward to fabricate working BN-graphene resonator devices. |
