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Investigations of the optical and EPR spectral data for the trigonal Cr3+ center in ZnGa2O4: Cr3+ crystal with a unified method-complete diagonalization of energy matrix.
- Source :
-
Optik - International Journal for Light & Electron Optics . Dec2018, Vol. 174, p563-566. 4p. - Publication Year :
- 2018
-
Abstract
- Abstract The optical and EPR spectral data of the trigonal Cr3+ centers in ZnGa 2 O 4 : Cr3+ crystal are unifiedly calculated by applying the complete diagonalization of energy matrix method resting on the two-spin-orbit-parameter model, where the one-electron basis functions are the molecular orbitals and the contributions from both the spin-orbit parameters of d n ion and ligand ion are included. Thus, the Racah parameters B , C , two spin-orbit parameters and two orbit reduction factors can be evaluated from a adjustable parameter, the covalence factor, and so only three adjustable parameters are used in the calculation. The ten calculated spectral data (seven optical band positions and three EPR parameters, g factors g // , g ⊥ and zero-field splitting D) are rationally consistent with the experimental values. The defect structure of the trigonal Cr3+ center is also given. These outcomes are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00304026
- Volume :
- 174
- Database :
- Academic Search Index
- Journal :
- Optik - International Journal for Light & Electron Optics
- Publication Type :
- Academic Journal
- Accession number :
- 131731153
- Full Text :
- https://doi.org/10.1016/j.ijleo.2018.08.115