′�?, by using a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds for the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical theory computations display that the residual absorption of your https://messiahndqdo.blogdemls.com/32665197/5-simple-techniques-for-baga4se7-crystal