Defect models of the three trigonal Ti3+ centers in LiF : Ti3+ and LiF : Ti3+: Mg2+ crystals
文献类型：期刊论文
| 作者 | W. C. Zheng ; Z. Qing ; W. L. Feng ; M. Yang |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2007 |
| 卷号 | 66期号:4-5页码:1312-1316 |
| 关键词 | defect model electron paramagnetic resonance (EPR) crystal- and ligand-field theory Ti3+ Mg2+ LiF electron-spin-resonance thermoluminescent lithium-fluoride atomic screening constants scf functions titanium lif epr spectra kznf3 |
| ISSN号 | 1386-1425 |
| 中文摘要 | The EPR g factors of the trigonal Ti3+ center A in LiF:Ti3+ and two additional trigonal Ti3+ centers B and C in LiF:Ti3+:Mg2+ crystals are calculated from the third-order perturbation formulas based on the cluster approach. From the calculations and by considering the Ti3+ displacement along (1 1 1) axis obtained by ENDOR experiment, the defect models for the three Ti3+ centers are suggested. For center A, there are two possible models: (i) [Ti3+F3-O32-] cluster and (ii) [Ti3+F6-] Cluster with the Ti3+ off-center caused by a neighboring Li+ vacancy (VLi+) at (1 1 1) axis. The latter seems the more likely. The defect models of centers B and C are the [Ti3+F3-O32-] clusters associated with a neighboring: Mg2+ ion at the Li+ site along (1 1 1) axis in the vicinity of three F-ions and three O2- ions, respectively. The reasonableness of these models is discussed. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34091]  |
| 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 | W. C. Zheng,Z. Qing,W. L. Feng,et al. Defect models of the three trigonal Ti3+ centers in LiF : Ti3+ and LiF : Ti3+: Mg2+ crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2007,66(4-5):1312-1316. |
| APA | W. C. Zheng,Z. Qing,W. L. Feng,&M. Yang.(2007).Defect models of the three trigonal Ti3+ centers in LiF : Ti3+ and LiF : Ti3+: Mg2+ crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,66(4-5),1312-1316. |
| MLA | W. C. Zheng,et al."Defect models of the three trigonal Ti3+ centers in LiF : Ti3+ and LiF : Ti3+: Mg2+ crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 66.4-5(2007):1312-1316. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。