′�?, which has a frequency of 295 cm−one, is attributed into 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 demonstrate that the residual absorption from the BGSe https://baga2gese6-crystal54673.blogtov.com/13123540/the-smart-trick-of-baga4se7-crystal-that-nobody-is-discussing