| Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals | |
| Li, Bang-Xing1; Zheng, Wen-Chen1,3; Yang, Wei-Qing1,2 | |
| Corresponding Author | Zheng, Wen-Chen(zhengwc1@163.com) |
| 2010 | |
| Source Publication | RADIATION EFFECTS AND DEFECTS IN SOLIDS
 |
| ISSN | 1042-0150 |
| Volume | 165Issue:1Pages:11-15 |
| Abstract | This paper reports the theoretical calculations of spin-Hamiltonian (SH) parameters (g factors g(parallel to) and g perpendicular to and hyperfine structure constants A(parallel to) and A(perpendicular to)) for the approximately tetragonal Co2+ center in Na2MgAlF7:Co2+ crystals from the second-order perturbation formulas based on the cluster approach for d(7) ions in tetragonal octahedra with the effective spin S = 1/2. In the calculations, the reduction in the spin-orbit parameters and the orbital reduction factors due to the dynamical Jahn-Teller effect is considered. The calculated SH parameters are in agreement with the experimental values. The defect structure of the Co2+ center, which is consistent with the expectation based on the size of the impurity of the Co2+, and that of the replaced Mg2+, is obtained from the calculations. The results are discussed. |
| Keyword | electronic paramagnetic resonance defect structure crystal-field theory Co2+ Na2MgAlF7 |
| DOI | 10.1080/10420150903273856 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Nuclear Science & Technology ; Physics |
| WOS Subject | Nuclear Science & Technology ; Physics, Fluids & Plasmas ; Physics, Condensed Matter |
| WOS ID | WOS:000273877200002 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/103245 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng, Wen-Chen |
| Affiliation | 1.Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China 2.Chengdu Univ Informat Technol, Dept Opt & Elect, Chengdu 610225, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Bang-Xing,Zheng, Wen-Chen,Yang, Wei-Qing. Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals[J]. RADIATION EFFECTS AND DEFECTS IN SOLIDS,2010,165(1):11-15. |
| APA | Li, Bang-Xing,Zheng, Wen-Chen,&Yang, Wei-Qing.(2010).Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals.RADIATION EFFECTS AND DEFECTS IN SOLIDS,165(1),11-15. |
| MLA | Li, Bang-Xing,et al."Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals".RADIATION EFFECTS AND DEFECTS IN SOLIDS 165.1(2010):11-15. |
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