′�?, with a frequency of 295 cm−one, is attributed for the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as opposed to the residual absorption peak. Density functional theory computations clearly show which the residual absorption in the https://baga4se7crystal95172.blogofoto.com/63692142/baga4se7-crystal-can-be-fun-for-anyone