THE SMART TRICK OF BAGA4SE7 CRYSTAL THAT NO ONE IS DISCUSSING

′�?, that has a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−1 phonon corresponds into the crystal IR absorption edge, instead of the residual absorption peak. Density functional idea computations exhibit the residual absorption from the BGSe crystal originates in