′�?, having 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 on the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful concept computations display which the residual absorption with the BGSe https://baga4se7crystal35789.blog5star.com/33116175/how-much-you-need-to-expect-you-ll-pay-for-a-good-baga4se7-crystal