′�?, which has a frequency of 295 cm−one, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption with the 295 cm−one phonon corresponds to the crystal IR absorption edge, as opposed to the residual absorption peak. Density practical concept computations present which the residual absorption from the https://baga4se7-crystal38270.techionblog.com/32824832/the-smart-trick-of-baga4se7-crystal-that-nobody-is-discussing