′�?, 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 towards the crystal IR absorption edge, instead of the residual absorption peak. Density purposeful principle computations demonstrate that the residual absorption of the BGSe crystal https://baga4se7-crystal41839.59bloggers.com/32898462/the-smart-trick-of-baga4se7-crystal-that-no-one-is-discussing