THE SMART TRICK OF BAGA4SE7 CRYSTAL THAT NOBODY IS DISCUSSING

′�?, that has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−1 phonon corresponds to the crystal IR absorption edge, as opposed to the residual absorption peak. Density functional theory computations clearly show the residual absorption on the BGSe crystal origin