Extended Data Fig. 8: Mechanism of elastic dipole and electric dipole formation.
From: Atomically engineered interfaces yield extraordinary electrostriction
a. An ideal tetrahedron with cations having equivalent distances and three C2 symmetry axes present. Schematic illustration of the elastic dipole formation resulting from tetrahedral deformation along the b. (100), c. (010), and d. (001) directions. The off-site displacements of the cations result in local-symmetry breaking. Note that replacing one of the ions with Gd will result in a structure with three variants that are equivalent to the distortion of Ceria without Gd.
