′�?, having a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds into the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful idea computations clearly show which the residual absorption on the https://charliejznxk.howeweb.com/33387362/a-secret-weapon-for-baga4se7-crystal