Fig. 6: Phase-field simulations of the domain structures.
a1–c1 Three-dimensional domain structures of a1 x = 0.12, b1 x = 0.15, c1 x = 0.18 with coexisting O and T nanodomains (the cubic matrix is omitted for clarity). Two-dimensional domain structures of a2 x = 0.12, b2 x = 0.15, c2 x = 0.18. Sectional view of the three-dimensional domain structures of a3 x = 0.12, b3 x = 0.15, c3 x = 0.18. The various colors indicate different polarization orientations of the nanodomains.
