′�?, with 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 into the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful principle computations show which the residual absorption of the BGSe https://deanyfjmk.boyblogguide.com/31919659/the-smart-trick-of-baga4se7-crystal-that-no-one-is-discussing