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