′�?, having a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−one phonon corresponds to your crystal IR absorption edge, rather than the residual absorption peak. Density useful principle computations show which the residual absorption of the BGSe crystal https://baga4se7-crystal86295.bloggosite.com/39587351/rumored-buzz-on-baga4se7-crystal