2026-06-01T02:16:34Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1198292025-05-05T23:51:13Zcom_20.500.14352_14col_20.500.14352_15

One-dimensional moiré superlattices and flat bands in collapsed chiral carbon nanotubes Arroyo Gascón, Olga Fernández Perea, Ricardo Suárez Morell, Eric Cabrillo, Carlos Chico Gómez, Leonor María 538.9 Moiré superlattices Chiral carbon nanotubes Flat bands Twisted bilayer graphene Física de materiales Física del estado sólido 2211 Física del Estado Sólido We demonstrate that one-dimensional moiré patterns, analogous to those found in twisted bilayer graphene, can arise in collapsed chiral carbon nanotubes. Resorting to a combination of approaches, namely, molecular dynamics to obtain the relaxed geometries and tight-binding calculations validated against ab initio modeling, we find that magic angle physics occur in collapsed carbon nanotubes. Velocity reduction, flat bands, and localization in AA regions with diminishing moiré angle are revealed, showing a magic angle close to 1°. From the spatial extension of the AA regions and the width of the flat bands, we estimate that many-body interactions in these systems are stronger than in twisted bilayer graphene. Chiral collapsed carbon nanotubes stand out as promising candidates to explore many-body effects and superconductivity in low dimensions, emerging as the one-dimensional analogues of twisted bilayer graphene. Agencia Estatal de Investigación (España) European Commission Ministerio de Ciencia, Innovación y Universidades (España) Ministerio de Economía, Industria y Competitividad (España) Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) Depto. de Física de Materiales Fac. de Ciencias Físicas TRUE pub 2025-05-05T18:13:50Z 2025-05-05T18:13:50Z 2020-09-01 journal article AM https://hdl.handle.net/20.500.14352/119829 1530-6984 10.1021/acs.nanolett.0c03091 1530-6992 eng info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-097018-B-I00/ES/TOPOLOGIA Y CORRELACIONES EN MATERIALES CUANTICOS Y TECNOLOGIAS CUANTICAS DE ESTADO SOLIDO/ info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-75354-P 1170921 O. Arroyo-Gascón et al., One-Dimensional Moiré Superlattices and Flat Bands in Collapsed Chiral Carbon Nanotubes, Nano Lett. 2020, 20, 10, 7588–7593 open access application/pdf American Chemical Society