Fermi velocity engineering in graphene by substrate modification

@article{Hwang2012FermiVE,
  title={Fermi velocity engineering in graphene by substrate modification},
  author={Choongyu Hwang and David A. Siegel and S. K. Mo and William Regan and Ariel Ismach and Yuegang Zhang and Alex Zettl and Alessandra Lanzara},
  journal={Scientific Reports},
  year={2012},
  volume={2},
  pages={590}
}
The Fermi velocity, vF, is one of the key concepts in the study of a material, as it bears information on a variety of fundamental properties. Upon increasing demand on the device applications, graphene is viewed as a prototypical system for engineering vF. Indeed, several efforts have succeeded in modifying vF by varying charge carrier concentration, n. Here we present a powerful but simple new way to engineer vF while holding n constant. We find that when the environment embedding graphene is… 
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