′�?, using a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, rather then the residual absorption peak. Density functional principle computations exhibit the residual absorption of your BGSe crystal originates https://jeffreyyavqk.amoblog.com/5-simple-techniques-for-baga4se7-crystal-54514325