NEW STEP BY STEP MAP FOR BAGA4SE7 CRYSTAL

′�?, using a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−1 phonon corresponds to the crystal IR absorption edge, instead of the residual absorption peak. Density functional idea computations demonstrate the residual absorption from the BGSe crystal originates from