New Generation of Moiré Superlattices in Doubly Aligned hBN/Graphene/hBN Heterostructures

Nano Letters
Lujun WangC Schönenberger

Abstract

The specific rotational alignment of two-dimensional lattices results in a moiré superlattice with a larger period than the original lattices and allows one to engineer the electronic band structure of such materials. So far, transport signatures of such superlattices have been reported for graphene/hBN and graphene/graphene systems. Here we report moiré superlattices in fully hBN encapsulated graphene with both the top and the bottom hBN aligned to the graphene. In the graphene, two different moiré superlattices form with the top and the bottom hBN, respectively. The overlay of the two superlattices can result in a third superlattice with a period larger than the maximum period (14 nm) in the graphene/hBN system, which we explain in a simple model. This new type of band structure engineering allows one to artificially create an even wider spectrum of electronic properties in two-dimensional materials.

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Citations

Sep 5, 2019·Chemical Communications : Chem Comm·Yu Kyoung RyuAndres Castellanos-Gomez
Dec 12, 2019·Chemical Society Reviews·Xuhai LiuHaibo Zeng
May 2, 2020·Physical Review Letters·Lujun WangChristian Schönenberger
Nov 15, 2020·Nature Communications·Julien BarrierA I Berdyugin
Dec 6, 2020·Science Advances·Yaping YangArtem Mishchenko
Jan 22, 2020·Nano Letters·Miša AnđelkovićFrançois M Peeters
May 24, 2019·Nano Letters·Lujun WangChristian Schönenberger
May 2, 2020·Nano Letters·Momoko OnoderaTomoki Machida
Nov 2, 2021·Advanced Science·Mengya LiuGui Yu
Dec 12, 2021·Nature Communications·Xingdan SunZhidong Zhang
Dec 23, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yiheng ChenJian-Min Zhang

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