Correlation effects in the resonant and nonresonant manganese 3s⃗2p photon emission in MnF₂

Experimental results for manganese 3s⃗2p photon emission in MnF₂ that occurs after resonant and nonresonant production of a 2p hole are presented. Transitions that involve a change in the spin of the 3d⁵ subshell are observed and identified. Results of a free-ion calculation that includes the effect of the interaction between the configurations with a single 3s hole and two 3p holes in the final state is also given. Good overall agreement is found between the experiment and the calculation. This comparison allows a direct interpretation of the absorption spectrum, the Raman emission spectra, and the normal or nondispersive fluorescence spectrum in terms of well-defined ionic states. Spin-changing transitions in both absorption and emission are identified, and their intensities relative to the spin-conserving transitions are found to be well predicted by theory.