EPR parameters and local geometry for Cr3+ and V2+ ions in HfS2 crystals
文献类型：期刊论文
| 作者 | Q. Zhou ; W. C. Zheng ; X. X. Wu ; Y. Mei |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2005 |
| 卷号 | 62期号:4-5页码:769-772 |
| 关键词 | local structure electron paramagnetic resonance crystal- and ligand-field theory Cr3+ V2+ HfS2 atomic screening constants superposition model scf functions field impurities spectrum sites mn2+ d3 |
| ISSN号 | 1386-1425 |
| 中文摘要 | From the high-order perturbation formulas of EPR parameters (zero-field splitting D, g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel to), A(perpendicular to)) based on the two spin-orbit coupling parameter model for 3d(3) ions in trigonal symmetry, the EPR parameters of Cr3+ and V2+ ions in HfS2 crystals are calculated. From the calculations, it is found that the local trigonal distortion angle theta of impurity center in HfS2:Cr3+ is smaller than that in HfS2 :V2+. The dominant cause of the small zero-field splitting vertical bar D vertical bar and g-anisotropy vertical bar Delta g vertical bar = vertical bar g(parallel to) - g(perpendicular to)vertical bar in HfS2:Cr3+ (compound to HfS2 :V2+) is due to the small local trigonal distortion angle theta rather than to the small impurity-ligand distance R in HfS2:Cr3+. (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/321006/35296]  |
| 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 | Q. Zhou,W. C. Zheng,X. X. Wu,et al. EPR parameters and local geometry for Cr3+ and V2+ ions in HfS2 crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2005,62(4-5):769-772. |
| APA | Q. Zhou,W. C. Zheng,X. X. Wu,&Y. Mei.(2005).EPR parameters and local geometry for Cr3+ and V2+ ions in HfS2 crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,62(4-5),769-772. |
| MLA | Q. Zhou,et al."EPR parameters and local geometry for Cr3+ and V2+ ions in HfS2 crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 62.4-5(2005):769-772. |
入库方式： OAI收割
来源：金属研究所
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