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arXiv · 2109.06038

Electrostatic interactions in twisted bilayer graphene

Tommaso Cea·Pierre A. Pantaleón·Niels R. Walet·Francisco Guinea
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Abstract

The effects of the long range electrostatic interaction in twisted bilayer graphene are described using the Hartree-Fock approximation. The results show a significant dependence of the band widths and shapes on electron filling, and the existence of broken symmetry phases at many densities, either valley/spin polarized, with broken sublattice symmetry, or both.

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Tommaso Cea, Pierre A. Pantaleón, Niels R. Walet, Francisco Guinea. 2021-09-13. Electrostatic interactions in twisted bilayer graphene. https://doi.org/10.1016/j.nanoms.2021.10.001

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