′�?, 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−1 phonon corresponds to the crystal IR absorption edge, rather then the residual absorption peak. Density purposeful concept computations exhibit that the residual absorption of your BGSe https://baga4se7crystal29528.kylieblog.com/32991405/top-latest-five-baga4se7-crystal-urban-news