′�?, having a frequency of 295 cm−1, is attributed to your stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−1 phonon corresponds for the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical theory computations display the residual absorption of the BGSe crystal https://michelangelod578qnl6.blogaritma.com/profile