′�?, with a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−one phonon corresponds to the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical idea computations present which the residual absorption from the https://baga4se7crystal73838.blogsidea.com/38988866/getting-my-baga4se7-crystal-to-work