Color maps with signal integration from (a) type-A and (b) type-B nanocrystals' individual atomic columns. Color maps obtained after the signal integration of individual atomic columns from the images of type-A and type-B nanocrystals, respectively. The color coding refers to the integrated intensity from the unfiltered HAADF-HRSTEM images presented in Figure 1. The values were normalized to the atomic column with the highest integrated intensity in each image.
Stroppa et al. Nanoscale Research Letters 2013 8:475 doi:10.1186/1556-276X-8-475