′�?, with a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−one phonon corresponds towards the crystal IR absorption edge, instead of the residual absorption peak. Density useful principle computations show which the residual absorption in the BGSe crystal https://camillac589yzw2.wikilentillas.com/user