RUMORED BUZZ ON BAGA4SE7 CRYSTAL

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