Investigations of the spin-Hamiltonian parameters and tetragonal distortions due to Jahn-Teller effect for the monovalent d(9) (Ni(+), Pd(+), Pt(+)) impurity centers in AgCl crystals
文献类型：期刊论文
| 作者 | W. L. Feng ; W. Q. Yang ; W. C. Zheng ; X. M. Li |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2010 |
| 卷号 | 507期号:2页码:498-501 |
| 关键词 | Electron paramagnetic resonance Crystal and ligand field theory Jahn-Teller effect AgCl Ni(+) Pd(+) Pt(+) electron-paramagnetic-resonance atomic screening constants single-crystals scf functions ions epr temperature fields model agbr |
| ISSN号 | 0925-8388 |
| 中文摘要 | When the monovalent md(9) ions Ni(+) (3d(9)), Pd(+) (4d(9)) and Pt(+) (5d(9)) substitute for the Ag(+) ions in AgCl crystal, the cubic chlorine octahedron surrounding Ag in the host AgCl crystal distorts into the tetragonally elongated octahedron in the md9 impurity center owing to the Jahn-Teller effect. The spin-Hamiltonian parameters (g factors g(parallel to) g(perpendicular to), and hyperfine structure constants A(parallel to), A(perpendicular to)) of the tetragonal md(9) centers in AgCl are calculated from the high-order perturbation formulas based on the cluster approach, in which the admixture between d orbitals of d(n) ion and p orbitals of ligand ion via covalence effect are taken into account. From the calculations, the spin-Hamiltonian parameters of these tetragonal md(9) centers in AgCl are explained reasonably and the tetragonal distortions (characterized by the tetragonal elongation Delta R = R(parallel to) - R(perpendicular to), where R(parallel to) and R(perpendicular to) denote the metal-ligand distances parallel with and perpendicular to the tetragonal axis) of these centers due to Jahn-Teller effect are obtained. The results are discussed. (C) 2010 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31103]  |
| 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. L. Feng,W. Q. Yang,W. C. Zheng,et al. Investigations of the spin-Hamiltonian parameters and tetragonal distortions due to Jahn-Teller effect for the monovalent d(9) (Ni(+), Pd(+), Pt(+)) impurity centers in AgCl crystals[J]. Journal of Alloys and Compounds,2010,507(2):498-501. |
| APA | W. L. Feng,W. Q. Yang,W. C. Zheng,&X. M. Li.(2010).Investigations of the spin-Hamiltonian parameters and tetragonal distortions due to Jahn-Teller effect for the monovalent d(9) (Ni(+), Pd(+), Pt(+)) impurity centers in AgCl crystals.Journal of Alloys and Compounds,507(2),498-501. |
| MLA | W. L. Feng,et al."Investigations of the spin-Hamiltonian parameters and tetragonal distortions due to Jahn-Teller effect for the monovalent d(9) (Ni(+), Pd(+), Pt(+)) impurity centers in AgCl crystals".Journal of Alloys and Compounds 507.2(2010):498-501. |
入库方式： OAI收割
来源：金属研究所
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