Extended Data Fig. 3: Least square fitting to determine the 3D coordinates of the Re and Mo atoms.

a, The x and y coordinates of the Re and Mo atoms were localized from the aligned projections of each data set. b, From these 2D coordinates, the tilt angles were calibrated and the 3D coordinates of the Re and Mo atoms were determined for each data set. The 3D atomic coordinates are consistent with those obtained by sAET with a RMSD of 2 pm and 13 pm for Mo (c) and Re (d) atoms, respectively, where a total of 1176 Mo and 32 Re atoms was used in the statistical analysis. Scale bar, 1 nm.