′�?, that has a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as an alternative to the residual absorption peak. Density functional principle computations present which the residual absorption on https://baga4se7crystal24578.newsbloger.com/33381375/not-known-factual-statements-about-baga4se7-crystal