Color maps and 3-D morphology models based on thickness maps obtained by the GMM fitting. (a, c) Color maps generated after thickness map quantization by the GMM fitting procedure for type-A and type-B nanocrystals, respectively. The color coding now represents the number of Ce atoms along each atomic column position. (b, d) 3-D morphology models based on the calculated column thicknesses and on the symmetry operations allowed by the CeO2 crystalline structure.
Stroppa et al. Nanoscale Research Letters 2013 8:475 doi:10.1186/1556-276X-8-475