fig6

Figure 6. (A) Temperature-dependent values of $$[2c_{13}^S{\alpha }_{[100]}+c_{33}^S{\alpha }_{[001]}]\sim {\gamma }_{[001]}$$ and (B) temperature-dependent values of $$[(c_{11}^S+c_{13}^S){\alpha }_{[100]}+c_{13}^S{\alpha }_{[001]}]\sim {\gamma }_{[100]}$$. (A and B) for MAPbI₃ using the tabulated c_ij values from Feng et al.^[45].