′�?, 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 for the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful theory computations clearly show the residual absorption with the https://baga4se7crystal20739.blogspothub.com/32001432/detailed-notes-on-baga4se7-crystal