′�?, by using a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−one phonon corresponds to your crystal IR absorption edge, rather then the residual absorption peak. Density purposeful principle computations demonstrate that the residual absorption of your BGSe https://baga4se7crystal98529.wizzardsblog.com/32400272/5-easy-facts-about-baga4se7-crystal-described