′�?, using a frequency of 295 cm−1, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption with the 295 cm−one phonon corresponds for the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful principle computations present that the residual absorption of the https://baga4se7-crystal20639.blogerus.com/54984787/5-simple-techniques-for-baga4se7-crystal