′�?, that has a frequency of 295 cm−1, is attributed to your stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−one phonon corresponds for the crystal IR absorption edge, rather than the residual absorption peak. Density functional principle computations show which the residual absorption with the BGSe https://alexisbauqo.shotblogs.com/rumored-buzz-on-baga4se7-crystal-46734417