′�?, which has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−one phonon corresponds to your crystal IR absorption edge, as opposed to the residual absorption peak. Density purposeful idea computations clearly show the residual absorption in the https://baga4se7crystal73836.yomoblog.com/39217856/examine-this-report-on-baga4se7-crystal