′�?, that has a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds to your crystal IR absorption edge, rather than the residual absorption peak. Density functional principle computations clearly show that the residual absorption of your https://baga4se7crystal29529.dgbloggers.com/33063172/how-much-you-need-to-expect-you-ll-pay-for-a-good-baga4se7-crystal