′�?, having a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The two-phonon absorption from the 295 cm−1 phonon corresponds into the crystal IR absorption edge, rather than the residual absorption peak. Density purposeful principle computations exhibit that the residual absorption on the BGSe crystal https://cashtxzyy.blogdanica.com/32662491/the-smart-trick-of-baga4se7-crystal-that-no-one-is-discussing