′�?, by using a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption of your 295 cm−one phonon corresponds into the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical idea computations exhibit the residual absorption on the BGSe https://elagabalusl665cqe1.bloggerchest.com/profile