′�?, using 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 into the crystal IR absorption edge, rather then the residual absorption peak. Density useful theory computations demonstrate the residual absorption of the BGSe crystal originates https://baga4se7crystal08006.diowebhost.com/87762042/baga4se7-crystal-can-be-fun-for-anyone