Fig. 2: AC-STEM study of dt-Nb12WO33.

(a) and (b) AC-STEM images of dt-Nb12WO33 (metals in octahedral sites and tetrahedral sites are indicated by blue and orange spheres, respectively). c–e Magnified AC-STEM images of the regions I, II, and III delimited in (b). f–h Line intensity profiles from the regions delimited in (c), (d), and (e), respectively. CS represents the crystallographic shear planes made by edge-sharing octahedra.