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Multilayer graphene with a superlattice potential

Sayed Ali Akbar GhorashiJennifer Cano
Dec 2022
摘要
Bernal stacked bilayer graphene subject to a superlattice potential canrealize topological and stacked flat bands [1]. In the present work, we extendthe study of a superlattice potential on graphene heterostructures to trilayerand quadrilayer graphene. Comparing Bernal- and chirally-stacked multilayersreveals that the latter are more suitable for realizing stacks of many flatbands. On the other hand, Bernal-stacked graphene heterostructures can realizetopological flat bands. Imposing two simultaneous superlattice potentialsenhances the viability of both regimes.
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