′�?, having a frequency of 295 cm−one, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption of your 295 cm−1 phonon corresponds to the crystal IR absorption edge, rather than the residual absorption peak. Density useful idea computations clearly show the residual absorption from the BGSe crystal https://jamesg444yly9.smblogsites.com/profile