Integrated intensity histograms and GMM classification from (a) type-A and (b) type-B nanocrystals. Integrated peak intensity histograms derived from the HAADF-HRSTEM images of (a) type-A and (b) type-B CeO2 nanocrystals. The dashed lines indicate the optimal distribution curves after the GMM fitting, and the solid red curves indicate the residual errors. The number assigned to each distribution curve refers to the number of Ce atoms along the projected atomic columns.
Stroppa et al. Nanoscale Research Letters 2013 8:475 doi:10.1186/1556-276X-8-475