′�?, that has a frequency of 295 cm−1, is attributed into the stretching vibration of Ga–Se bonds. The two-phonon absorption on the 295 cm−one phonon corresponds towards the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful concept computations demonstrate the residual absorption in the BGSe https://baga4se7crystal07384.blogdiloz.com/31916476/the-smart-trick-of-baga4se7-crystal-that-no-one-is-discussing