2011
DOI: 10.1088/0031-8949/84/05/055703
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Spin-Hamiltonian parameters and defect structures for the trigonal Yb3+centers in wurtzite-type ZnS and CdS crystals

Abstract: A complete diagonalization (of the energy matrix, where the corresponding Hamiltonian consists of free-ion, crystal-field, Zeeman and hyperfine interaction terms) method is applied to calculate the spin-Hamiltonian parameters (g factors g || , g ⊥ and hyperfine structure constants A , A ⊥ ) for the trigonal Yb 3+ centers in wurtzite-type ZnS and CdS crystals. The calculated results are in reasonable agreement with the experimental values. In the calculations, the crystal-field parameters are obtained from the … Show more

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“…It can be seen clearly that such peaks are red shift compared to standard peak, it is mainly because that Er 3 + and Yb 3 + ions doping cause an expend of ZnS lattice. [19][20][21] As the ionic radii of Er 3 + (~0.89 Å) and Yb 3 + (~0.868 Å) are larger than that of Zn 2 + (~0.74 Å), and Zn vacancy (V Zn ) are generated to balance the charge, the defect equation is descried as follows:…”
Section: Resultsmentioning
confidence: 99%
“…It can be seen clearly that such peaks are red shift compared to standard peak, it is mainly because that Er 3 + and Yb 3 + ions doping cause an expend of ZnS lattice. [19][20][21] As the ionic radii of Er 3 + (~0.89 Å) and Yb 3 + (~0.868 Å) are larger than that of Zn 2 + (~0.74 Å), and Zn vacancy (V Zn ) are generated to balance the charge, the defect equation is descried as follows:…”
Section: Resultsmentioning
confidence: 99%