′�?, that has a frequency of 295 cm−one, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful concept computations display that the residual absorption in https://baga4se7-crystal96294.popup-blog.com/31991732/helping-the-others-realize-the-advantages-of-baga4se7-crystal