′�?, using a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−one phonon corresponds to your crystal IR absorption edge, instead of the residual absorption peak. Density functional idea computations demonstrate the residual absorption on the BGSe crystal originates https://baga4s7crystal07272.blue-blogs.com/39776443/top-latest-five-baga4se7-crystal-urban-news