Fig. 4: Nano- and local-scale chemical heterogeneity of BTS-M.
From: Multiscale-engineered ferroelectric ceramics exhibiting superior electrocaloric performance
a–c Dark field TEM images showing complex domain configurations. d–g EDS elemental mappings in a single grain. h Schematics of the ABO3 unit cell and its projection along the [110] zone axis. i Cation-displacement vector map derived from the high-angle annular dark field (HAADF) lattice image. The white dashed circle in (f) marks the Sn-poor and Sn-rich regions.
