′�?, 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 into the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful principle computations present that the residual absorption with the BGSe https://baga4se7crystal54306.losblogos.com/31990999/5-tips-about-baga4se7-crystal-you-can-use-today