| Theoretical studies of the optical and EPR spectra for Fe(3+) ion in the MF(3):Fe(3+) (M = Al, Ga) systems | |
| J. F. Li; X. Y. Kuang; A. J. Mao | |
| 2010 | |
| Source Publication | Journal of Luminescence
 |
| ISSN | 0022-2313 |
| Volume | 130Issue:3Pages:451-454 |
| Abstract | By analyzing the EPR spectra of Fe(3+) ion in the fluorinde glasses, the local lattice structures around impurity Fe(3+) ion in MF(3):Fe(3+) (M = Al, Ga) systems have been studied by means of diagonalizing the complete energy matrices of the electron-electron repulsion, the ligand-field and the spin-orbit coupling for a d(5) configuration ion in a trigonal ligand-field. Both the second-order and fourth-order EPR parameters D and (a-F) are taken simultaneously in the structural investigation. The results indicate that the local lattice structure around octahedral Fe(3+) center has an expansion distortion for Fe(3+) in MF(3):Fe(3+) (M = Al, Ga). The expansion distortion may be ascribed to the fact that the radius of Fe(3+) ion is larger than that of Al(3+) ion and Ga(3+) ion, and the Fe(3+) ion will push the fluoride ligands upwards and downwards, respectively. The local lattice structure parameters R = 1.927 A, theta = 55.538 degrees for Fe(3+) in AlF(3):Fe(3+) and R=1.931 A, theta = 56.09 degrees for Fe(3+) in GaF(3):Fe(3+) are determined, respectively, and the EPR spectra of the MF(3):Fe(3+) (M = Al, Ga) systems are satisfactorily explained. (C) 2009 Elsevier B.V. All rights reserved. |
| description.department | [li ju-fen] sw petr univ, sch sci, chengdu 610065, peoples r china. [kuang xiao-yu; mao ai-jie] sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. [kuang xiao-yu] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;li, jf (reprint author), sw petr univ, sch sci, chengdu 610065, peoples r china;scu_ljf@163.com scu_kxy@163.com |
| Keyword | Mf(3):Fe(3+) (m = Al Ga) System Local Lattice Structure Distortion Epr Spectrum Ligand-fields Theory Electron-paramagnetic-resonance Fluoride Glasses Field Fe-3++ |
| URL | 查看原文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/31218 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | J. F. Li,X. Y. Kuang,A. J. Mao. Theoretical studies of the optical and EPR spectra for Fe(3+) ion in the MF(3):Fe(3+) (M = Al, Ga) systems[J]. Journal of Luminescence,2010,130(3):451-454. |
| APA | J. F. Li,X. Y. Kuang,&A. J. Mao.(2010).Theoretical studies of the optical and EPR spectra for Fe(3+) ion in the MF(3):Fe(3+) (M = Al, Ga) systems.Journal of Luminescence,130(3),451-454. |
| MLA | J. F. Li,et al."Theoretical studies of the optical and EPR spectra for Fe(3+) ion in the MF(3):Fe(3+) (M = Al, Ga) systems".Journal of Luminescence 130.3(2010):451-454. |
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