Heterostrain-enabled dynamically tunable moire superlattice in twisted bilayer graphene.

ABSTRACT: The ability to precisely control moiré patterns in two-dimensional materials has enabled the realization of unprecedented physical phenomena including Mott insulators, unconventional superconductivity, and quantum emission. Along with the twist angle, the application of independent strain in each layer of stacked two-dimensional materials-termed heterostrain-has become a powerful means to manipulate the moiré potential landscapes. Recent experimental studies have demonstrated the possibility of continuously tuning the twist angle and the resulting physical properties. However, the dynamic control of heterostrain that allows the on-demand manipulation of moiré superlattices has yet to be experimentally realized. Here, by harnessing the weak interlayer van der Waals bonding in twisted bilaye

SUBMITTER: Gao X 

PROVIDER: S-EPMC8560801 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature