Laser-induced spectral hole burning in the presence of applied electric and magnetic fields has been used to determine the symmetry and electronic character of the colour centre in X-irradiated NaF whose zero-phonon line is at 5770 AA. The centre is found to have C s symmetry, perturbed only slightly from trigonal. The authors speculate that it, and other centres in this special region, may arise from F 3 + centres perturbed by structural or chemical defects.
No takes yet. Share an insight, caveat, or question.
Harley et al. (1983) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: