Analysis on the optical fine structure splitting and Zeeman splitting of Fe2+ ions in ZnS crystal

The optical fine splitting and Zeeman splitting of ZnS:Fe2+ are explained on the basis of both the complete energy matrix diagonalization procedure (CDP) and the crystal-field-like model. The results are in good agreement with experimental data and indicate that dynamic Jahn-Teller effect does not seem to play an important role in the ground state of ZnS:Fe2+.