BAGA4SE7 CRYSTAL CAN BE FUN FOR ANYONE

′�?, that has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical theory computations clearly show which the residual absorption in the BGS