Extended Data Fig. 4: Tilt series of electron diffraction patterns from hexagonal and cubic diamond domains.
a, When sample is along the [\(10\bar{1}0\)] zone axis of HD, tilting the sample 30° along (0002) causes the diffraction spots to reach the [\(2\bar{1}\bar{1}0\)] zone axis, indicating in-plane sixfold symmetry. The [0001] zone axis diffraction was taken from a differently oriented grain. b,c, The simulated and experimental tilt series SAD patterns from hexagonal and cubic diamond samples. The precise matching in three-dimensional tilting SAD patterns confirm the crystallographic symmetry of HD. Tilt angles measured from experiments, as shown in the figure, match those from simulated diffraction patterns.
