′�?, which has a frequency of 295 cm−1, is attributed on the stretching vibration of Ga–Se bonds. The two-phonon absorption in the 295 cm−one phonon corresponds on the crystal IR absorption edge, in lieu of the residual absorption peak. Density functional idea computations show that the residual absorption with the https://baga4se7-crystal51628.blogmazing.com/31993670/getting-my-baga4se7-crystal-to-work