Fig. 3: Strain and local distortion during cation diffusion.
From: Direct observation of cation diffusion driven surface reconstruction at van der Waals gaps
a Geometric phase analysis (GPA) of STEM images acquired from 145 s to 165 s. The locations of the shearing strain streak are indicated by white arrows. b Fitting curves from different times using Fick’s law. c, d Relationship between local geometric parameters (h, α) and local cation intensity (Ri) before (145–150 s) and after (155–165 s) the strain is relaxed. All scale bars are 2 nm. Source data are provided as a Source Data file.
