′�?, which has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption of the 295 cm−one phonon corresponds to your crystal IR absorption edge, rather then the residual absorption peak. Density useful principle computations show that the residual absorption of the BGSe https://baga4se7-crystal96294.popup-blog.com/31991732/helping-the-others-realize-the-advantages-of-baga4se7-crystal