Engineering band structures of two-dimensional materials with remote moire ferroelectricity.

ABSTRACT: The stacking order and twist angle provide abundant opportunities for engineering band structures of two-dimensional materials, including the formation of moiré bands, flat bands, and topologically nontrivial bands. The inversion symmetry breaking in rhombohedral-stacked transitional metal dichalcogenides endows them with an interfacial ferroelectricity associated with an out-of-plane electric polarization. By utilizing twist angle as a knob to construct rhombohedral-stacked transitional metal dichalcogenides, antiferroelectric domain networks with alternating out-of-plane polarization can be generated. Here, we demonstrate that such spatially periodic ferroelectric polarizations in parallel-stacked twisted WSe₂ can imprint their moiré potential onto a remote bilayer graphene. T

SUBMITTER: Ding J 

PROVIDER: S-EPMC11494083 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature