Investigations on the local structures of Cr3+(3d(3)) and Nd3+(4f(3)) ions at the trigonal Bi3+ sites in Bi4Ge3O12
文献类型：期刊论文
| 作者 | S. Y. Wu ; H. N. Dong |
| 刊名 | Optical Materials
 |
| 出版日期 | 2006 |
| 卷号 | 28期号:8-9页码:1095-1100 |
| 关键词 | defect structures electron paramagnetic resonance (EPR) Cr3+ Nd3+ Bi4Ge3O12 electron-paramagnetic-res superposition-model crystal-field theoretical investigations spectroscopic properties stimulated-emission growth spectra parameters covalency |
| ISSN号 | 0925-3467 |
| 中文摘要 | The local structures of Cr3+(3d(3)) and Nd3+(4f(3)) ions at the trigonal Bi3+ sites in Bi4Ge3O12 (BGO) are theoretically studied by using the perturbation formulas of the EPR parameters for a 3d(3) or 4f(3) ion in trigonally-distorted octahedra. Based on the studies, we find that the impurity Cr3+ does not occupy exactly the host Bi3+ site but undergoes an off-center displacement Delta Z(Cr) (approximate to 0.17 angstrom) towards the center of the oxygen octahedron along the C-3 axis, whereas the Nd3+ suffers another outward shift Delta Z(Nd) (approximate to -0.08 angstrom) away from the center of the octahedron. The calculated EPR parameters based on the above displacements show reasonable agreement with the observed values. (C) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34573]  |
| 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. Investigations on the local structures of Cr3+(3d(3)) and Nd3+(4f(3)) ions at the trigonal Bi3+ sites in Bi4Ge3O12[J]. Optical Materials,2006,28(8-9):1095-1100. |
| APA | S. Y. Wu,&H. N. Dong.(2006).Investigations on the local structures of Cr3+(3d(3)) and Nd3+(4f(3)) ions at the trigonal Bi3+ sites in Bi4Ge3O12.Optical Materials,28(8-9),1095-1100. |
| MLA | S. Y. Wu,et al."Investigations on the local structures of Cr3+(3d(3)) and Nd3+(4f(3)) ions at the trigonal Bi3+ sites in Bi4Ge3O12".Optical Materials 28.8-9(2006):1095-1100. |
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来源：金属研究所
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