′�?, having a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−1 phonon corresponds into the crystal IR absorption edge, instead of the residual absorption peak. Density useful concept computations show the residual absorption of the BGSe crystal originates https://jimt898hug2.dailyblogzz.com/profile