′�?, using a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The 2-phonon absorption from the 295 cm−one phonon corresponds to your crystal IR absorption edge, rather than the residual absorption peak. Density purposeful concept computations display that the residual absorption of your BGSe crystal https://baga4se7-crystal81245.tkzblog.com/32622260/everything-about-baga4se7-crystal