′�?, that has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds to the crystal IR absorption edge, instead of the residual absorption peak. Density functional theory computations clearly show which the residual absorption with the https://baga4se7-crystal76307.blogsumer.com/31962803/top-latest-five-baga4se7-crystal-urban-news