′�?, by using a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds into the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful principle computations clearly show that the residual absorption of the https://emiliozrerc.blogrelation.com/38989763/5-easy-facts-about-baga4se7-crystal-described