′�?, that has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds to your crystal IR absorption edge, as opposed to the residual absorption peak. Density functional idea computations demonstrate that the residual absorption on the https://baga4se7crystal95071.blogrelation.com/38620854/5-simple-techniques-for-baga4se7-crystal