Theoretical studies of the g factors and local structure for Pt3+ in alpha-Al2O3
文献类型：期刊论文
| 作者 | Z. H. Zhang ; S. Y. Wu ; S. X. Zhang ; L. L. Li |
| 刊名 | Pramana-Journal of Physics
 |
| 出版日期 | 2012 |
| 卷号 | 78期号:3页码:475-482 |
| 关键词 | Electron paramagnetic resonance (EPR) impurities and defects Pt3+ alpha-Al2O3 electron-paramagnetic resonance atomic screening constants superposition model supported platinum optical spectra crystal fields scf functions cobalt ions epr-spectra complexes |
| ISSN号 | 0304-4289 |
| 中文摘要 | The anisotropic g factors and local structure for the trigonal Pt3+ centre in alpha-Al2O3 are theoretically investigated from the perturbation formulas of the g factors for a 5d(7) ion in trigonal symmetry. The Pt3+ impurity is found to experience an outward displacement by about 0.18 angstrom away from the centre of the oxygen octahedron along the C-3-axis. The calculated g factors based on the above axial displacement show good agreement with the observed values. Importantly, the pending problem of +3 valence state of the doped Pt in alpha-Al2O3 is theoretically clarified, and the possibility of Pt+ (5d(9)) is thus excluded in this work. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60472]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. H. Zhang,S. Y. Wu,S. X. Zhang,et al. Theoretical studies of the g factors and local structure for Pt3+ in alpha-Al2O3[J]. Pramana-Journal of Physics,2012,78(3):475-482. |
| APA | Z. H. Zhang,S. Y. Wu,S. X. Zhang,&L. L. Li.(2012).Theoretical studies of the g factors and local structure for Pt3+ in alpha-Al2O3.Pramana-Journal of Physics,78(3),475-482. |
| MLA | Z. H. Zhang,et al."Theoretical studies of the g factors and local structure for Pt3+ in alpha-Al2O3".Pramana-Journal of Physics 78.3(2012):475-482. |
入库方式： OAI收割
来源：金属研究所
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