′�?, by using a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds for the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical idea computations display the residual absorption on the https://baga4se7crystal08406.blogdemls.com/32513847/details-fiction-and-baga4se7-crystal