′�?, having a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−one phonon corresponds for the crystal IR absorption edge, instead of the residual absorption peak. Density purposeful principle computations display which the residual absorption in the BGSe crystal https://baga4se7-crystal73840.bloginwi.com/66461528/rumored-buzz-on-baga4se7-crystal