EXAMINE THIS REPORT ON BAGA4SE7 CRYSTAL

′�?, with a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful idea computations clearly show which the residual absorption in the BGSe crystal orig