Moiré effects in graphene-hBN heterostructures

Yongping Du, Ning Xu, Xianqing Lin, Antti-Pekka Jauho*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Encapsulating graphene in hexagonal boron nitride (hBN) has several advantages: The highest mobilities reported to date are achieved in this way, and precise nanostructuring of graphene becomes feasible through the protective hBN layers. Nevertheless, subtle effects may arise due to the differing lattice constants of graphene and hBN, and due to the twist angle between the graphene and hBN lattices. Here, we use a recently developed model which allows us to perform band structure and magnetotransport calculations of such structures, and show that with a proper account of the moiré physics an excellent agreement with experiments can be achieved, even for complicated structures such as disordered graphene, or antidot lattices on a monolayer hBN with a relative twist angle. Calculations of this kind are essential to a quantitative modeling of twistronic devices.
Original languageEnglish
Article number043427
JournalPhysical Review Research
Volume2
Issue number4
Number of pages11
ISSN2643-1564
DOIs
Publication statusPublished - 2020

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