Investigations on the defect structure and the EPR parameters for AgBr:Ir(2+)
文献类型：期刊论文
| 作者 | Y. X. Hu ; S. Y. Wu ; X. F. Wang ; P. Xu |
| 刊名 | European Physical Journal-Applied Physics
 |
| 出版日期 | 2009 |
| 卷号 | 48期号:2 |
| 关键词 | atomic screening constants transition-metal ions silver bromide radiative recombination superposition model scf functions resonance iridium crystals chloride |
| ISSN号 | 1286-0042 |
| 中文摘要 | The defect structure and the EPR parameters (the g factors, the hyperfine structure constants and the superhyperfine parameters) for the tetragonal Ir(2+) center in AgBr are theoretically investigated using the perturbation formulas of these parameters for a 5d(7) ion in tetragonally elongated octahedra. In the calculations, the contributions from the ligand orbital and spin-orbit coupling interactions and the local lattice (elongation) distortion due to the Jahn-Teller effect are taken into account. Related molecular orbital coefficients and the ligand unpaired spin densities are determined quantitatively using a cluster approach. The impurity center is attributed to the substitutional [IrBr(6)](4-) cluster on host Ag(+) site, which suffers the relative elongation of about 0.08 angstrom along C(4) axis due to the Jahn-Teller effect. The calculated EPR parameters based on the above Jahn-Teller elongation show good agreement with the observed values. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31974]  |
| 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 | Y. X. Hu,S. Y. Wu,X. F. Wang,et al. Investigations on the defect structure and the EPR parameters for AgBr:Ir(2+)[J]. European Physical Journal-Applied Physics,2009,48(2). |
| APA | Y. X. Hu,S. Y. Wu,X. F. Wang,&P. Xu.(2009).Investigations on the defect structure and the EPR parameters for AgBr:Ir(2+).European Physical Journal-Applied Physics,48(2). |
| MLA | Y. X. Hu,et al."Investigations on the defect structure and the EPR parameters for AgBr:Ir(2+)".European Physical Journal-Applied Physics 48.2(2009). |
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。