Data were obtained on the Raman scattering of F and Fe+ centers. It was found that the symmetry assignments of the Raman effect of Fe+ centers were in agreement with F+ emission spectrum measurements. Also, polarization results showed that the frequency separation between the T2g and Eg modes was about 17/cm.

S.C.Ke, J.C.Martin, H.T.Tohver: Journal of Physics - Condensed Matter, 1995, 7[35], 7063-7