CONSIDERATIONS TO KNOW ABOUT BAGA4SE7 CRYSTAL

′�?, that has a frequency of 295 cm−one, is attributed on the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds on the crystal IR absorption edge, rather then the residual absorption peak. Density useful principle computations demonstrate the residual absorption in the BGSe crystal originates