Abstract
AbstractThe effect of configuration interaction via crystal field on the intensity of crystal field transitions in tetrahedral Fe2+ions has been discussed. The mixing of the excited configurations 3d54p and 3d54f to the ground 3d6configuration of the tetrahedral Fe2+ion via crystal field results in a parity allowed electric dipole transition between crystal field levels of E and T2symmetry. The contribution of such configuration interaction to the oscillator strength of crystal field transition of the tetrahedral Fe2+ion in ZnS has been estimated within the framework of crystal field theory using Racah formalism and Richardson functions for the radial integrals. This contribution to the oscillator strength is found to be quite significant and approximately equal to 0.28x10−4.
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