Studies on the local structure and the spin Hamiltonian parameters for the trigonal Mn2+ center in Bi4Ge3O12
文献类型：期刊论文
| 作者 | X. F. Wang ; S. Y. Wu ; Z. H. Zhang ; L. H. Wei ; Y. X. Hua |
| 刊名 | Modern Physics Letters B
 |
| 出版日期 | 2008 |
| 卷号 | 22期号:14页码:1381-1387 |
| 关键词 | electron paramagnetic resonance (EPR) crystal-field theory and spin Hamiltonians defect structure Mn2+ Bi4Ge3O12 electron-paramagnetic-resonance single-crystals doped bi4ge3o12 superposition model microscopic origin ions epr impurities behavior fields |
| ISSN号 | 0217-9849 |
| 中文摘要 | The local structure and the spin Hamiltonian parameters (the zero-field splitting D, the g factors g parallel to, g perpendicular to and the hyperfine structure constants A// and A perpendicular to) for the trigonal Mn2+ center in Bi4Ge3O12 are theoretically studied from the perturbation formulas of these parameters for a 3d(5) ion in trigonal symmetry. The impurity Mn2+ replacing host Bi3+ is not found to occupy the exact Bi3+ site but to suffer a large off-center displacement by about 0.36 angstrom towards the center of the oxygen octahedron along the C-3-axis due to the size and charge mismatching substitution. The calculated spin Hamiltonian parameters based on the above displacement show good agreement with the observed values. The results and the mechanism of the impurity displacement are discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33153]  |
| 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 | X. F. Wang,S. Y. Wu,Z. H. Zhang,et al. Studies on the local structure and the spin Hamiltonian parameters for the trigonal Mn2+ center in Bi4Ge3O12[J]. Modern Physics Letters B,2008,22(14):1381-1387. |
| APA | X. F. Wang,S. Y. Wu,Z. H. Zhang,L. H. Wei,&Y. X. Hua.(2008).Studies on the local structure and the spin Hamiltonian parameters for the trigonal Mn2+ center in Bi4Ge3O12.Modern Physics Letters B,22(14),1381-1387. |
| MLA | X. F. Wang,et al."Studies on the local structure and the spin Hamiltonian parameters for the trigonal Mn2+ center in Bi4Ge3O12".Modern Physics Letters B 22.14(2008):1381-1387. |
入库方式： OAI收割
来源：金属研究所
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