Multiple flat bands and topological Hofstadter butterfly in twisted bilayer graphene close to the second magic angle
Author(s): Lu, Xiaobo; Lian, Biao; Chaudhary, Gaurav; Piot, Benjamin A; Romagnoli, Giulio; et al
DownloadTo refer to this page use:
http://arks.princeton.edu/ark:/88435/pr1fx73z3r| Abstract: | Significance Multiple flat bands in high-quality twisted bilayer graphene close to the theoretically predicted second magic angle are observed. These well-isolated flat moiré bands host a nontrivial topology which is evidenced by a connecting multiband Hofstadter butterfly spectrum. This work provides a perspective for understanding the emergent quantum phases (i.e., strong correlation and band topology) in twisted bilayer graphene and the fractal Hofstadter spectra of multiple topological bands. |
| Publication Date: | 23-Jul-2021 |
| Electronic Publication Date: | 23-Jul-2021 |
| Citation: | Lu, Xiaobo, Lian, Biao, Chaudhary, Gaurav, Piot, Benjamin A, Romagnoli, Giulio, Watanabe, Kenji, Taniguchi, Takashi, Poggio, Martino, MacDonald, Allan H, Bernevig, B Andrei, Efetov, Dmitri K. (2021). Multiple flat bands and topological Hofstadter butterfly in twisted bilayer graphene close to the second magic angle. Proceedings of the National Academy of Sciences, 118 (30), 10.1073/pnas.2100006118 |
| DOI: | doi:10.1073/pnas.2100006118 |
| ISSN: | 0027-8424 |
| EISSN: | 1091-6490 |
| Language: | en |
| Type of Material: | Journal Article |
| Journal/Proceeding Title: | Proceedings of the National Academy of Sciences |
| Version: | Author's manuscript |
Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.