′�?, having 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 useful principle computations demonstrate that the residual absorption of the https://baga4se7-crystal73851.worldblogged.com/38444820/5-easy-facts-about-baga4se7-crystal-described