Cubic (InGa)2O3 films were grown by pulsed laser deposition.
Raman scatting spectra for cubic (InGa)2O3 films were investigated over a wide temperature range.
Temperature coefficients of different Raman modes in (InGa)2O3 films were calculated.
Three-phonon process always dominates in the decay process for all the modes in (InGa)2O3 films.