Band structure engineering of graphene by strain : First-principles calculations

@inproceedings{Gui2008BandSE,
  title={Band structure engineering of graphene by strain : First-principles calculations},
  author={Gui Gui and Jin Li and Jianxin Zhong},
  year={2008}
}
We have investigated the electronic structure of graphene under different planar strain distributions using the first-principles pseudopotential plane-wave method and the tight-binding approach. We found that graphene with a symmetrical strain distribution is always a zero band-gap semiconductor and its pseudogap decreases linearly with the strain strength in the elastic regime. However, asymmetrical strain distributions in graphene result in opening of band gaps at the Fermi level. For the… CONTINUE READING
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