CONSIDERATIONS TO KNOW ABOUT BAGA4SE7 CRYSTAL

′�?, that has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−one phonon corresponds on the crystal IR absorption edge, instead of the residual absorption peak. Density useful idea computations clearly show that the residual absorption of the BGSe crystal origin