fig6

Figure 6. Phase structure evolutions of (110)-oriented PTO films with respective to misfit strain ε₁₁ at various constant strain ε₂₂. (A-C) ε₂₂ = -2%; (D-F) ε₂₂ = 0%; (G-I) ε₂₂ = 2%. (A, D, G) are the volume fractions. (B, E, H) are the polarization components of various phases. (C, F, I) are the angle θ between the polarizations of the M_c(O_c) phase and the x₃ axis, in which the bars represent the standard deviations of the angle. The schematic of the angle θ is shown as an insert in (I).