What is Macroscopic Uniform 2D Moiré Superlattices (Stanford/Fang Liu)?

Macroscopic uniform 2D moire superlattices are large-area stacks of two-dimensional materials, such as graphene sheets, layered on top of one another at a precise, controlled twist angle to create a moire interference pattern spanning a wide area of the sample. This fabrication approach extends the special electronic properties that twisted 2D material stacks exhibit at microscopic scale to a much larger, uniform sheet, rather than being confined to the tiny flakes produced by manual stacking methods.