′�?, having a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption from the 295 cm−1 phonon corresponds to your crystal IR absorption edge, as an alternative to the residual absorption peak. Density purposeful theory computations exhibit that the residual absorption with the https://baga4se7crystal73008.azzablog.com/32960931/not-known-factual-statements-about-baga4se7-crystal