Two dimensional Dirac carbon allotropes from graphene.

@article{Xu2014TwoDD,
  title={Two dimensional Dirac carbon allotropes from graphene.},
  author={Li-Chun Xu and Ru-Zhi Wang and Maosheng Miao and Xiaolin Wei and Yuanping Chen and Hui Yan and Woon-Ming Lau and Li‐Min Liu and Yanming Ma},
  journal={Nanoscale},
  year={2014},
  volume={6 2},
  pages={
          1113-8
        }
}
Using a structural search method in combination with first-principles calculations, we found lots of low energy 2D carbon allotropes and examined all possible Dirac points around their Fermi levels. Three amazing 2D Dirac carbon allotropes have been discovered, named as S-graphene, D-graphene and E-graphene. By analyzing the topology correlations among S-, T, net W graphene and graphene, we found that a general rule is valuable for constructing 2D carbon allotropes that are keen to possess… 
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