The electronic thickness of graphene

@article{Rickhaus2019TheET,
  title={The electronic thickness of graphene},
  author={Peter Rickhaus and Ming-Hao Liu and Marcin Kurpas and Annika Kurzmann and Yongjin Lee and Hiske Overweg and Marius Eich and Riccardo Pisoni and Takashi Taniguchi and Kenji Watanabe and Klaus Richter and Klaus Ensslin and Thomas Ihn},
  journal={Science Advances},
  year={2019},
  volume={6}
}
The electronic thickness of graphene is measured by two capacitively coupled, atomically close graphene layers. When two dimensional crystals are atomically close, their finite thickness becomes relevant. Using transport measurements, we investigate the electrostatics of two graphene layers, twisted by θ = 22° such that the layers are decoupled by the huge momentum mismatch between the K and K′ points of the two layers. We observe a splitting of the zero-density lines of the two layers with… 

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