Abstract
AbstractSrCl2 single crystals doped with Fe2+ and Co2+ are grown and the absorption spectra in the far infrared (5 to 100 cm−1) and middle infrared (400 to 4000 cm−1) spectral ranges are investigated. Several lines are observed which are assigned to electronic transitions of the impurity ions based on their dependence on the impurity concentration and on the temperature. The crystal field Hamiltonian appropriate for Fe2+ and Co2+ in SrCl2 is diagonalized. The crystal field parameter Dq and the spin–orbit coupling parameter λ are obtained from an optimum fit of the calculated level spacing to the experimentally observed transitions. Application of a magnetic field yields for both kinds of impurity ions the g‐factor of the ground state.
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