′�?, with a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, instead of the residual absorption peak. Density purposeful concept computations display which the residual absorption in the BGSe crystal https://ferdinandq235jfb2.blogrelation.com/profile