Fig. 5: Dichromatic pattern of the Σ31 GB orientation.
From: Direct observation of substitutional and interstitial dopant diffusion in oxide grain boundary
The red and blue circles represent the lattices (Al sites) in the perfect crystals of upper and lower grains, respectively, and the black sites represent the CSL sites. The smaller circles with light colors represent the extended lattices to the other side of the grains. The white triangles indicate the GB interstitial sites, and the black arrows represent the displacements between the lattice and the interstitial sites, corresponding shuffle motion. The black arrowhead indicates the location of the GB core.
