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Table 1 Intended values of tolerance factor (τ) (unitless), octahedral factor (µ) (unitless), optimsed lattice parameter (a0 in Å), bulk modulus (B in GPa), pressure derivative of bulk modulus (B0') (unitless), unit cell volume (V0 in a.u3), and ground state energy (E0 in eV) for Cs2MGaBr6 halide perovskites.
