期刊
NANO LETTERS
卷 19, 期 12, 页码 8683-8689出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.9b03335
关键词
Twisted graphite; Moire superlattices; flat bands; magic angle; density of the states
类别
资金
- European Commission under the Graphene Flagship [CNECTICT-604391]
- STFC [ST/P004423/1] Funding Source: UKRI
We analyze the effect of twists on the electronic structure of configurations of infinite stacks of graphene layers. We focus on three different cases: an infinite stack where each layer is rotated with respect to the previous one by a fixed angle, two pieces of semi-infinite graphite rotated with respect to each other, and finally a single layer of graphene rotated with respect to a graphite surface. In all three cases, we find a rich structure, with sharp resonances and flat bands for small twist angles. The method used can be easily generalized to more complex arrangements and stacking sequences.
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