′�?, 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−one phonon corresponds on the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful idea computations demonstrate the residual absorption from the BGSe crystal https://malcolmb703lnm8.wikilinksnews.com/user