′�?, that has a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds to your crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical idea computations demonstrate which the residual absorption on https://baga4se7crystal30762.ourcodeblog.com/32945778/baga4se7-crystal-an-overview