′�?, with a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds into the crystal IR absorption edge, in lieu of the residual absorption peak. Density practical theory computations clearly show which the residual absorption of your https://simonaeeea.prublogger.com/32037041/baga4se7-crystal-an-overview