5 EASY FACTS ABOUT BAGA4SE7 CRYSTAL DESCRIBED

′�?, which has a frequency of 295 cm−one, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−1 phonon corresponds to the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical theory computations exhibit the residual absorption in the BGSe crystal origina