′�?, by using a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−1 phonon corresponds to your crystal IR absorption edge, rather then the residual absorption peak. Density useful theory computations exhibit that the residual absorption of your BGSe https://baga4se7-crystal42840.blogpostie.com/54439324/how-much-you-need-to-expect-you-ll-pay-for-a-good-baga4se7-crystal