′�?, using a frequency of 295 cm−1, is attributed towards the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−1 phonon corresponds to the crystal IR absorption edge, rather then the residual absorption peak. Density useful theory computations show the residual absorption from the BGSe crystal originates https://louisntsss.activoblog.com/34993068/getting-my-baga4se7-crystal-to-work