Article ID Journal Published Year Pages File Type
1237155 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2005 4 Pages PDF
Abstract
The axial Ti2+ center in a nearly wholly cubic ZnS crystal is assigned to the Ti2+ ion on the hexagonal site of wurtzite structure caused by stacking faults. On the ground of the assignment, the EPR parameters (zero-field splitting D, g factor g∥ and g-anisotropy Δg = g∥ − g⊥) of the axial Ti2+ center are calculated from the high-order perturbation formulas based on the cluster approach for the EPR parameters of 3d2 ion in trigonal symmetry. From the calculations, the local atom-position parameter uloc (which is different from the corresponding parameter u in the host wurtzite structure) and hence the defect structure of the Ti2+ center are estimated. The results (the calculated EPR parameters and the defect structure) are discussed.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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