Comment on "Creating in-plane pseudomagnetic fields in excess of 1000 T by misoriented stacking in a graphene bilayer"

In a recent paper [Phys. Rev. B 89, 125418 (2014)], the authors argue that it is possible to map the electronic properties of twisted bilayer graphene to those of bilayer graphene in an in-plane magnetic field. However, their description of the low-energy dynamics of twisted bilayer graphene is rest...

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Bibliographic Details
Published in:arXiv.org 2016-06
Main Authors: Van der Donck, M, Peeters, F M, B Van Duppen
Format: Article
Language:English
Subjects:
Bilayers
Brillouin zones
Energy spectra
Graphene
Jupiter
Magnetic fields
Online Access:Get full text
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Summary:In a recent paper [Phys. Rev. B 89, 125418 (2014)], the authors argue that it is possible to map the electronic properties of twisted bilayer graphene to those of bilayer graphene in an in-plane magnetic field. However, their description of the low-energy dynamics of twisted bilayer graphene is restricted to the extended zone scheme and therefore neglects the effects of the superperiodic structure. If the energy spectrum is studied in the supercell Brillouin zone, we find that the comparison with an in-plane magnetic field fails because (i) the energy spectra of the two situations exhibit different symmetries and (ii) the low-energy spectra are very different.
ISSN:2331-8422
DOI:10.48550/arxiv.1606.04709