HELPING THE OTHERS REALIZE THE ADVANTAGES OF BAGA4SE7 CRYSTAL

′�?, having a frequency of 295 cm−1, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−one phonon corresponds into the crystal IR absorption edge, as an alternative to the residual absorption peak. Density useful principle computations exhibit the residual absorption on the BGSe crystal orig