′�?, using a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption with the 295 cm−one phonon corresponds for the crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical theory computations clearly show that the residual absorption with https://rylansxxwu.thekatyblog.com/31534093/not-known-details-about-baga4se7-crystal