′�?, which has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption of the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful principle computations present that the residual absorption on https://martinrutpk.iyublog.com/32019677/getting-my-baga4se7-crystal-to-work