Extended Data Fig. 1: Introduction of folding and folded hBN flakes.
From: Electrostatic moiré potential from twisted hexagonal boron nitride layers
a, Illustration of folding along the zigzag (armchair) direction leading to the parallel (anti-parallel) orientation at the interface. Optical image of one ~ 4 nm thick hBN flake (b) before and (c) after folding. Scale bars represent 5 μm. The folded regions are marked by dashed lines with different colour contrasts. The blue and red dashed lines encircle the bilayer and trilayer regions in (c), respectively.
