HELPING THE OTHERS REALIZE THE ADVANTAGES OF BAGA4SE7 CRYSTAL

′�?, with a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−one phonon corresponds into the crystal IR absorption edge, instead of the residual absorption peak. Density functional idea computations exhibit the residual absorption in the BGSe crystal originates in th