The material parameters required as input for AMSET, such as high-frequency and static dielectric constants, elastic constants, phonon frequencies, and deformation potentials, were obtained by first-principles calculations. Ionic dielectric constant contributions and the Γ-point phonon frequencies and dipole moments required to calculate the polar-optic phonon frequency in AMSET were acquired using the finitedisplacement method with the PBEsol functional. Deformation potential and highfrequency dielectric constant were determined using HSE06 + SOC. These data are available in Table . The transport properties have been converged with respect to the interpolation factor, as shown in Figure .