′�?, with a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption from the 295 cm−one phonon corresponds towards the crystal IR absorption edge, as opposed to the residual absorption peak. Density useful idea computations display which the residual absorption of your BGSe https://baga4se7-crystal41738.prublogger.com/32024036/what-does-baga4se7-crystal-mean