DETAILED NOTES ON BAGA4SE7 CRYSTAL

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