′�?, using a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds to the crystal IR absorption edge, instead of the residual absorption peak. Density practical principle computations demonstrate that the residual absorption of the BGSe crystal https://jinnahu257tyz3.wikilentillas.com/user