NOT KNOWN DETAILS ABOUT BAGA4SE7 CRYSTAL

′�?, by using a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The 2-phonon absorption of the 295 cm−one phonon corresponds towards the crystal IR absorption edge, instead of the residual absorption peak. Density purposeful concept computations show the residual absorption of your BGSe crystal originates