HELPING THE OTHERS REALIZE THE ADVANTAGES OF BAGA4SE7 CRYSTAL

′�?, that has a frequency of 295 cm−one, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−one phonon corresponds on the crystal IR absorption edge, rather than the residual absorption peak. Density useful concept computations demonstrate that the residual absorption of the BGSe crystal