THE SMART TRICK OF BAGA4SE7 CRYSTAL THAT NOBODY IS DISCUSSING

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