′�?, with a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−one phonon corresponds towards the crystal IR absorption edge, in lieu of the residual absorption peak. Density practical idea computations demonstrate the residual absorption of your BGSe crystal https://dominickpfrep.theobloggers.com/38994648/the-smart-trick-of-baga4se7-crystal-that-no-one-is-discussing