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The electronic energy levels of the Mn 4+ (3d 3 ) ion in the rhombohedral perovskite, LaAlO 3 , have been calculated using the exchange charge model of crystal field theory. The calculated Mn 4+ energy levels are in good agreement with the experimental spectra that have been presented in the literature. The results of our calculations yield the crystal field splitting...
The electronic energy levels of the six-coordinated Cr 4+ , Cr 3+ , and Mn 4+ ions in the pyrochlore, Y 2 Sn 2 O 7 , were calculated using the exchange charge model of crystal field theory. For these transition metal ions, the calculated energy levels and their trigonal splitting are in good agreement with experimental data. The calculations of the crystal...
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