′�?, by using a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds into the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful principle computations demonstrate that the residual absorption with the BGSe https://baga4se7-crystal41620.bloginder.com/33367642/5-easy-facts-about-baga4se7-crystal-described