′�?, that has 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, in lieu of the residual absorption peak. Density practical principle computations clearly show the residual absorption with the https://baga4se7crystal69022.ampedpages.com/baga4se7-crystal-an-overview-59544195