′�?, using a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−one phonon corresponds on the crystal IR absorption edge, rather than the residual absorption peak. Density practical theory computations display which the residual absorption of your BGSe crystal https://roselyneh802bxr8.wikirecognition.com/user