Extended Data Fig. 4: Optical images and EBSD maps for additional samples.

Optical image and X,Y,Z inverse pole figures are in respective order from left to right for each sample. a&c, vdW-molded bismuth encapsulated between hBN. b, vdW-molded bismuth without top hBN. d-e, SiO2-molded bismuth on the edge of a hBN flake. Bismuth thickness for panels a-e are 21 nm, 23 nm, 17 nm, 20 nm − 61 nm, and 30 nm, respectively.