%0 Journal Article
%A Arroyo Gascón, Olga
%A Fernández Pera, Ricardo
%A Suárez Morell, Eric
%A Cabrillo, Carlos
%A Chico Gómez, Leonor
%T Universality of moiré physics in collapsed chiral carbon nanotubes
%D 2023
%@ 0008-6223
%U https://hdl.handle.net/20.500.14352/72181
%X We report the existence of moiré patterns and magic angle physics in all families of chiral collapsed carbon nanotubes. A detailed study of the electronic structure of all types of chiral nanotubes, previously collapsed via molecular dynamics, has been performed. We find that each family possesses a unique geometry and moire disposition, as well as a characteristic number of flat bands. Remarkably, all kinds of nanotubes behave the same with respect to magic angle tuning, showing a monotonic behavior that gives rise to magic angles in full agreement with those of twisted bilayer graphene. Therefore, magic angle behavior is universally found in chiral collapsed nanotubes with a small chiral angle, giving rise to moiré patterns. Our approach comprises first-principles and semi-empirical calculations of the band structure, density of states and spatial distribution of the localized states signaled by flat bands.
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