′�?, by using a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−1 phonon corresponds to the crystal IR absorption edge, instead of the residual absorption peak. Density practical concept computations demonstrate which the residual absorption in the BGSe https://jaredbhhij.blogsumer.com/32099869/5-easy-facts-about-baga4se7-crystal-described