′�?, which has a frequency of 295 cm−1, is attributed to your stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as opposed to the residual absorption peak. Density purposeful idea computations present that the residual absorption from the https://baga4se7-crystal97307.dbblog.net/6121297/5-simple-techniques-for-baga4se7-crystal