Nearly flat bands in twisted triple bilayer graphene

@article{Shin2022NearlyFB,
  title={Nearly flat bands in twisted triple bilayer graphene},
  author={Jiseon Shin and Bheema Lingam Chittari and Yun-Guk Jang and Hongki Min and Jeil Jung},
  journal={Physical Review B},
  year={2022}
}
We investigate the electronic structure of alternating-twist triple Bernal-stacked bilayer graphene (t3BG) as a function of interlayer coupling ω , twist angle θ , interlayer potential difference ∆, and top-bottom bilayers sliding vector τ for three possible configurations AB/AB/AB, AB/BA/AB, and AB/AB/BA. The parabolic low-energy band dispersions in a Bernal-stacked bilayer and gap-opening through a finite interlayer potential difference ∆ allows the flattening of bands in t3BG down to ∼ 20 meV for… 

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