′�?, having a frequency of 295 cm−one, is attributed to your stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−1 phonon corresponds into the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful concept computations show which the residual absorption on the https://baga4se7-crystal74184.bloggerbags.com/38058596/baga4se7-crystal-an-overview