′�?, that has a frequency of 295 cm−one, is attributed on 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 then the residual absorption peak. Density useful theory computations demonstrate that the residual absorption of your BGSe https://baga4se7-crystal24678.spintheblog.com/33203060/how-much-you-need-to-expect-you-ll-pay-for-a-good-baga4se7-crystal