Figure 2
STEM/EDXS analysis of an alternating cyclic twin with four domains. (a) Low-magnification STEM image of the twinned grain viewed along the common [111]Cst zone axis. The three (101)Cst TBs and the NCC extend from a common point located near the edge of the grain. (b) HAADF-STEM image of the region around the core. (c) EDXS point analyses from the cyclic twin core and bulk SnO2 indicate significant enrichment with Nb and Co in the core region. |