LAUSR

Two-dimensional (2D) materials often possess interesting physical and electronic phenomena that are not present in bulk materials. For example, graphene has energy bands with a linear dispersion, which leads to low-energy charge carriers that act as massless fermions [1]. In addition, many-body interactions in 2D transition metal dichalcogenides result in complex phase diagrams yielding superconducting and charge density wave states [2]. Recently, efforts towards furthering the unique properties of 2D materials have been pursued, for example by forming bilayer structures. By utilizing materials with different lattice constants or by introducing a twist angle between the layers, a real-space moiré pattern is generated in the material that can act as a periodic electron scattering potential and lead to reconstruction of the material’s energy spectrum [3,4]. In certain circumstances this can dramatically alter the properties of the material, as was recently discovered for bilayer graphene, where a ‘magic’ twist angle resulted in flat bands and strongly correlated electrons that generated correlated insulating and unconventional superconducting states in the material [5,6].