Exploring the Stability of Twisted van der Waals Heterostructures.

@article{Silva2020ExploringTS,
  title={Exploring the Stability of Twisted van der Waals Heterostructures.},
  author={Andrea Silva and Victor E. P. Claerbout and Tom{\'a}s Polcar and Denis Kramer and Paolo Nicolini},
  journal={ACS applied materials \& interfaces},
  year={2020}
}
Recent research showed that the rotational degree of freedom in stacking 2D materials yields great changes in the electronic properties. Here, we focus on an often overlooked question: are twisted geometries stable and what defines their rotational energy landscape? Our simulations show how epitaxy theory breaks down in these systems, and we explain the observed behaviour in terms of an interplay between flexural phonons and the interlayer coupling, governed by moir\'e superlattice. Our… 
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