Studies on the local structure of the tetragonal Er3+ center in CaO
文献类型：期刊论文
| 作者 | S. Y. Wu ; H. N. Dong |
| 刊名 | Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
 |
| 出版日期 | 2005 |
| 卷号 | 60期号:4页码:271-274 |
| 关键词 | defect structures electron paramagnetic resonance (EPR) crystal-field and spin hamiltonians Er3+ CaO electron-spin-resonance superposition-model insulator coatings magnesium-oxide vanadium alloys single-crystals calcium oxide parameters blankets ions |
| ISSN号 | 0932-0784 |
| 中文摘要 | The local structure of the tetragonal Er3+ center in CaO is theoretically studied by using the perturbation formulas of the g factors for a 4f(11) ion in tetragonal symmetry. In these formulas, the contributions to the g factors from the second-order perturbation terms and the admixtures of various states are taken into account. Based on the investigations, this center is suggested to be the impurity Er3+ substituting the host Ca2+ site, associated with a Ca2+ vacancy V-Ca in the [100] (C-4) axis due to charge compensation. By studying the g factors of the tetragonal center, impurity Er3+ is expected to undergo an off-center displacement Delta Z( approximate to 0.2 A) towards the V-Ca along the C-4 axis because of the electrostatic attraction. The calculated g factors based on the displacement Delta Z show reasonable agreement with the observed values. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35127]  |
| 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 | S. Y. Wu,H. N. Dong. Studies on the local structure of the tetragonal Er3+ center in CaO[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2005,60(4):271-274. |
| APA | S. Y. Wu,&H. N. Dong.(2005).Studies on the local structure of the tetragonal Er3+ center in CaO.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,60(4),271-274. |
| MLA | S. Y. Wu,et al."Studies on the local structure of the tetragonal Er3+ center in CaO".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 60.4(2005):271-274. |
入库方式： OAI收割
来源：金属研究所
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