′�?, that has a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful idea computations exhibit which the residual absorption from https://baga4se7crystal86396.blogscribble.com/32535147/a-secret-weapon-for-baga4se7-crystal