Issue 45, 2021, Issue in Progress

Interplay between structural deformations and flat band phenomenology in twisted bilayer antimonene

Abstract

In this work we apply first principles calculations to investigate the flat band phenomenology in twisted antimonene bilayer. We show that the relatively strong interlayer interactions which characterize this compound have profound effects in the emergence and properties of the flat bands. Specifically, when the moiré length becomes large enough to create well defined stacking patterns along the structure, out-of-plane displacements take place and are stabilized in the regions dominated by the AB stacking, leading to the emergence of flat bands. The interplay between structural and electronic properties allows for detection of flat bands in higher twist angles comparable to other two-dimensional materials. We also show that their energy position may be modulated by noncovalent functionalization with electron acceptor molecules.

Graphical abstract: Interplay between structural deformations and flat band phenomenology in twisted bilayer antimonene

Supplementary files

Article information

Article type
Paper
Submitted
09 Jul 2021
Accepted
10 Aug 2021
First published
17 Aug 2021
This article is Open Access
Creative Commons BY license

RSC Adv., 2021,11, 27855-27859

Interplay between structural deformations and flat band phenomenology in twisted bilayer antimonene

A. C. R. Souza, M. J. S. Matos and M. S. C. Mazzoni, RSC Adv., 2021, 11, 27855 DOI: 10.1039/D1RA05301A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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