′�?, that has a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−one phonon corresponds for the crystal IR absorption edge, as opposed to the residual absorption peak. Density purposeful theory computations display the residual absorption in the BGSe https://baga4se7-crystal64418.blogofoto.com/63842541/a-secret-weapon-for-baga4se7-crystal