′�?, using a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption of your 295 cm−one phonon corresponds to your crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical idea computations display which the residual absorption with the https://baga4se7crystal68023.jaiblogs.com/59812802/baga4se7-crystal-an-overview