′�?, which has 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 to your crystal IR absorption edge, in lieu of the residual absorption peak. Density practical theory computations clearly show the residual absorption of the https://baga4se7crystal19528.blogs100.com/33208960/the-smart-trick-of-baga4se7-crystal-that-nobody-is-discussing