′�?, with a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The two-phonon absorption with the 295 cm−one phonon corresponds to the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful theory computations show that the residual absorption of your BGSe https://baga4se7-crystal85283.onzeblog.com/32803770/rumored-buzz-on-baga4se7-crystal