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arXiv · 2212.12549

Multilayer graphene with a superlattice potential

Sayed Ali Akbar Ghorashi·Jennifer Cano
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Abstract

Bernal stacked bilayer graphene subject to a superlattice potential can realize topological and stacked flat bands [1]. In the present work, we extend the study of a superlattice potential on graphene heterostructures to trilayer and quadrilayer graphene. Comparing Bernal- and chirally-stacked multilayers reveals that the latter are more suitable for realizing stacks of many flat bands. On the other hand, Bernal-stacked graphene heterostructures can realize topological flat bands. Imposing two simultaneous superlattice potentials enhances the viability of both regimes.

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Sayed Ali Akbar Ghorashi, Jennifer Cano. 2022-12-23. Multilayer graphene with a superlattice potential. https://doi.org/10.1103/physrevb.107.195423

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