′�?, which has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−1 phonon corresponds for the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical theory computations clearly show the residual absorption from the https://baga4se7-crystal31228.blogdun.com/33092414/top-latest-five-baga4se7-crystal-urban-news