Exploring the stability of twisted van der Waals heterostructures
arXiv:2001.05298 · doi:10.1021/acsami.0c13971
Abstract
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 Moiré superlattice. Our argument applied to the well-studied MoS/Graphene system rationalize experimental results and could serve as guidance to design twistronics devices.
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Cited by in corpus (4)
- The twisting dynamics of large lattice mismatch van der Waals heterostructures
- Reorganization energy from charge transport measurements in a monolithicallyintegrated molecular device
- Emerging chirality and moiré dynamics in twisted layered material heterostructures
- Modeling Interlayer Interactions and Phonon Thermal Transport in Silicene Bilayer