Fig. 4: Comparison of the room-temperature low-energy Raman spectra for LiGa1−xInxCr4O8.

a Composition dependence of the T2g(1) and T'2g(1) phonon modes of LiGa1−xInxCr4O8 measured at room temperature. The dashed lines are guides to the eye. b Phonon parameters of the T2g(1) and T'2g(1) modes as a function of x.