′�?, that has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds on the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical theory computations show which the residual absorption with https://baga4se7crystal29628.ivasdesign.com/54309586/5-easy-facts-about-baga4se7-crystal-described