Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3
文献类型：期刊论文
| 作者 | W. C. Zheng ; S. R. Zhang ; L. He |
| 刊名 | Radiation Effects and Defects in Solids
 |
| 出版日期 | 2009 |
| 卷号 | 164期号:3页码:178-182 |
| 关键词 | defect structure EPR spectra crystal- and ligand-field theory BaTiO3 Ru4+ Ir4+ electron-paramagnetic-resonance yttrium gallium garnet orthophosphate mpo4 m optical-absorption defect structure local-structure y crystals fe3+ ions epr position |
| ISSN号 | 1042-0150 |
| 中文摘要 | By means of the formulae based on the first-order theory of resonance for a low-spin 2T2 term in trigonal symmetry, the spin-Hamiltonian parameters (g factors g//, g and hyperfine structure constants A//, A) for Rh4+(4d5) and Ir4+(5d5) ions in the low-temperature rhombohedral phase of BaTiO3 are calculated. The calculated results are in reasonable agreement with the experimental values. From the calculations, the off-center displacements of Rh4+ and Ir4+ in the oxygen octahedra of BaTiO3 crystal are acquired. These impurity displacements are much smaller than that of the replaced host ion Ti4+. This point is analogous to the displacements of 3dn impurities Fe3+ and Co2+ in rhombohedral BaTiO3 obtained by analyzing their spin-Hamiltonian parameters. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32616]  |
| 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,S. R. Zhang,L. He. Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3[J]. Radiation Effects and Defects in Solids,2009,164(3):178-182. |
| APA | W. C. Zheng,S. R. Zhang,&L. He.(2009).Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3.Radiation Effects and Defects in Solids,164(3),178-182. |
| MLA | W. C. Zheng,et al."Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3".Radiation Effects and Defects in Solids 164.3(2009):178-182. |
入库方式： OAI收割
来源：金属研究所
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