′�?, which has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−one phonon corresponds on the crystal IR absorption edge, as an alternative to the residual absorption peak. Density functional concept computations demonstrate the residual absorption from the https://baga4se7-crystal14578.blogmazing.com/32003979/rumored-buzz-on-baga4se7-crystal