@article{04e7a2a6e52e4d399b569b2d0718bff0,
title = "Correlated States in Strained Twisted Bilayer Graphenes Away from the Magic Angle",
abstract = "Graphene moir{\'e} superlattice formed by rotating two graphene sheets can host strongly correlated and topological states when flat bands form at so-called magic angles. Here, we report that, for a twisting angle far away from the magic angle, the heterostrain induced during stacking heterostructures can also create flat bands. Combining a direct visualization of strain effect in twisted bilayer graphene moir{\'e} superlattices and transport measurements, features of correlated states appear at {"}non-magic{"}angles in twisted bilayer graphene under the heterostrain. Observing correlated states in these {"}non-standard{"}conditions can enrich the understanding of the possible origins of the correlated states and widen the freedom in tuning the moir{\'e} heterostructures and the scope of exploring the correlated physics in moir{\'e} superlattices. ",
keywords = "electronic correlations, heterostrain, moir{\'e} superlattice, Twisted bilayer graphene, valley polarization",
author = "Le Zhang and Ying Wang and Rendong Hu and Puhua Wan and Oleksandr Zheliuk and Minpeng Liang and Xiaoli Peng and Zeng, {Yu Jia} and Jianting Ye",
note = "Funding Information: We thank Joost Zoesbergen for the technical support. This work was supported by the Shenzhen Science and Technology Project (Grant Nos. JCYJ20180507182246321 and JCYJ20210324095611032). L. Zhang acknowledges the support from the Guangdong Province International Postdoctoral Program for Young Talents. P. Wan and O. Zheliuk were supported by the project TOPCORE (with project number OCENW.GROOT.2019.048) of the research programme Open Competition ENW Groot, which is financed by the Dutch Research Council (NWO). O. Zheliuk also acknowledges the financial support of the CogniGron research center and the Ubbo Emmius Funds (University of Groningen). Y. Wang and R. D. Hu were supported by the Dual PhD program between University of Groningen and NTU, and Osaka University, respectively. The device fabrication was performed using NanoLabNL facilities. Publisher Copyright: {\textcopyright} 2022 The Authors.",
year = "2022",
month = apr,
day = "27",
doi = "10.1021/acs.nanolett.1c04400",
language = "English",
volume = "22",
pages = "3204--3211",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "AMER CHEMICAL SOC",
number = "8",
}