Local Structural Parameters of the Tetragonal V2+–VM Centers in MCl:V2+ (M = Na, K, Rb) Crystals Estimated from EPR Data
✍ Scribed by Shao-Yi Wu; Wen-Chen Zheng
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 126 KB
- Volume
- 207
- Category
- Article
- ISSN
- 0370-1972
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✦ Synopsis
The high-order perturbation formulas of zero-field splitting D and gyromagnetic factors g k and g c for 3d 3 ions in tetragonal symmetry are established by using a two-spin±orbit(SO)-parameter model where the contributions to these EPR parameters from both the SO coupling of the central 3d 3 ions and that of the ligands are considered. From these formulas, the local structural parameters for the tetragonal V 2 ±V M centers in MCl:V 2 (M Na, K, Rb) crystals are estimated from the EPR data. The results are compared with those obtained from the conventional one-SO-parameter model where only the contribution of the SO coupling of central 3d 3 ions is included. The reasonableness of the results based on the two-SO-parameter model is discussed.