Theoretical Study of Ground-state Zero-field Splitting for ZnS∶Mn2+and ZnS∶Fe3+Systems
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Graphical Abstract
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Abstract
The EPR spectra of Mn 2+ and Fe 3+ ions in ZnS∶Mn 2+ and ZnS∶Fe 3+ systems have been extensively studied. However, the theoretical results show that the calculation values of the zero-field splitting are always much less than those of the experimental findings. Up to now, this difficulty has not yet been satisfactorily removed. In present paper, we assume that the sulfur ion has a sp 3 hybrid configuration in tetrahedral ZnS, so that the sulfur ion displays a positive...
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