′�?, that has a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds to your crystal IR absorption edge, in lieu of the residual absorption peak. Density useful concept computations show which the residual absorption with the https://stephenmdqdo.blogkoo.com/new-step-by-step-map-for-baga4se7-crystal-52308665