Scanning tunnelling microscopy of suspended graphene.

@article{Zan2012ScanningTM,
  title={Scanning tunnelling microscopy of suspended graphene.},
  author={Recep Zan and Christopher A Muryn and Ursel Bangert and Philip W. Mattocks and Paul L. Wincott and David Vaughan and Xuesong Li and Luigi Pietro Maria Colombo and Rodney S. Ruoff and B. Hamilton and Kostya S. Novoselov},
  journal={Nanoscale},
  year={2012},
  volume={4 10},
  pages={
          3065-8
        }
}
Suspended graphene has been studied by STM for the first time. Atomic resolution on mono- and bi-layer graphene samples has been obtained after ridding the graphene surface of contamination via high-temperature annealing. Static local corrugations (ripples) have been observed on both types of structures. 
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