Fig. 8: Characteristics of atomic displacements in polar clusters. | Communications Physics

Fig. 8: Characteristics of atomic displacements in polar clusters.

From: Large electromechanical strain and unconventional domain switching near phase convergence in a Pb-free ferroelectric

Fig. 8

a, b Stereographic projections of atomic displacement directions of the B-site atoms viewed along [001] from the reverse Monte Carlo (RMC) analysis of X-ray total scattering data. a, b corresponds to data measured at 27 and 127 °C, respectively. The color bar on the right is used to indicate the weighted B-site displacements. c Schematic of the relevant symmetry-defining displacement directions in pseudo-cubic perovskites. The red, green, and blue markers correspond to the rhombohedral (R), orthorhombic (O), and tetragonal (T) displacement directions, respectively.

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