′�?, having a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds to the crystal IR absorption edge, instead of the residual absorption peak. Density useful concept computations show the residual absorption from the BGSe crystal originates https://shahrukho776cpd1.theblogfairy.com/profile