′�?, using a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−1 phonon corresponds into the crystal IR absorption edge, rather then the residual absorption peak. Density purposeful concept computations show the residual absorption of your BGSe crystal originates https://collinsp887gsf2.wikicommunications.com/user