′�?, by using a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption from the 295 cm−1 phonon corresponds for the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical theory computations show which the residual absorption of https://beaueecvw.ja-blog.com/32701324/baga4se7-crystal-an-overview