′�?, which has 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, as an alternative to the residual absorption peak. Density practical idea computations exhibit which the residual absorption from https://baga4se7-crystal74073.blogdal.com/33213026/not-known-facts-about-baga4se7-crystal