Investigations of the EPR zero-field splitting and the defect structure for Mn2+ and Fe3+ ions in anatase crystals
文献类型：期刊论文
| 作者 | G. Q. Qu ; X. X. Wu ; W. C. Zheng |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2007 |
| 卷号 | 68期号:3页码:905-907 |
| 关键词 | electron paramagnetic resonance crystal-field theory defect structure Mn2+ Fe3+ anatase (TiO2) temperature-dependence optical-absorption parameters cr3+ spectra tio2 centers rutile ruby |
| ISSN号 | 1386-1425 |
| 中文摘要 | The EPR zero-field splittings D of Mn2+ and Fe3+ ions in anatase crystals at room and low temperatures are calculated from the high-order perturbation formula of zero-field splitting D for 3d(5) ions in tetragonal symmetry based on the dominant spin-orbit coupling mechanism. The calculated results are consistent with the observed values. From the calculations, Mn2+ and Fe3+ ions are suggested to substitute for T-i(4+) ions in anatase (in the previous paper, Mn2+ ion was Suggested at an interstitial site rather than substitutional site) and the defect structures (characterized mainly by the local oxygen parameter mu) for both tetragonal Mn2+ and Fe3+ impurity centers are estimated. The different zero-field splitting at room and low temperatures are due mainly to the change of local oxygen parameter mu with the temperature. These results are discussed. (C) 2007 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/321006/33794]  |
| 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 | G. Q. Qu,X. X. Wu,W. C. Zheng. Investigations of the EPR zero-field splitting and the defect structure for Mn2+ and Fe3+ ions in anatase crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2007,68(3):905-907. |
| APA | G. Q. Qu,X. X. Wu,&W. C. Zheng.(2007).Investigations of the EPR zero-field splitting and the defect structure for Mn2+ and Fe3+ ions in anatase crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,68(3),905-907. |
| MLA | G. Q. Qu,et al."Investigations of the EPR zero-field splitting and the defect structure for Mn2+ and Fe3+ ions in anatase crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 68.3(2007):905-907. |
入库方式： OAI收割
来源：金属研究所
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