Theoretical study of electron paramagnetic resonance spectrum for Fe3+ ion in KMgF3 : Fe3+ system
文献类型：期刊论文
| 作者 | J. F. Li ; X. Y. Kuang ; X. F. Huang ; C. Lu ; A. J. Mao |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2007 |
| 卷号 | 309期号:1页码:113-118 |
| 关键词 | KMgF3 : Fe3+ system local lattice structure distortion EPR spectrum ligand-field theory superposition-model analysis spin-hamiltonian parameters single-crystals doped kmgf3 field kznf3 state fe-3+ laser mn2+ |
| ISSN号 | 0304-8853 |
| 中文摘要 | The electron paramagnetic resonance spectrum of the KMgF3:Fe3+ system has been studied on the basis of the complete energy matrices for the electron-electron repulsion, the ligand-field and the spin-orbit coupling of d(5) configuration ion with a trigonal symmetry. A two-layer-ligand model, which includes six F- ions in the first layer and eight next nearest-neighbor K+ ions in the second layer, has been proposed to describe the real ligand-field. By simulating the second-order and fourth-order EPR parameters D and (a - F) simultaneously, a displacement of a K+ ion along C-3-axis towards the Fe3+ ion has been found theoretically, and this displacement will give rise to the distortion of the octahedron constructed by six F- ligand ions in the first layer. Delta Z is used to describe the displacement of a K+ ion along C3-axis towards the Fe3+ ion, and two angles theta(1) and theta(2) between the Fe3+-F- band and C3-axis are taken to describe the local distortion along the [111] direction. By adjusting the Delta Z, the range of the local distortion parameters Delta theta(1) = 5.54 degrees-6.07 degrees, Delta theta(2) = -4.60 degrees to -5.00 degrees are determined, and the EPR spectrum of the KMgF3:Fe3+ system has been satisfactorily explained by the two-layer-ligand model. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33636]  |
| 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 | J. F. Li,X. Y. Kuang,X. F. Huang,et al. Theoretical study of electron paramagnetic resonance spectrum for Fe3+ ion in KMgF3 : Fe3+ system[J]. Journal of Magnetism and Magnetic Materials,2007,309(1):113-118. |
| APA | J. F. Li,X. Y. Kuang,X. F. Huang,C. Lu,&A. J. Mao.(2007).Theoretical study of electron paramagnetic resonance spectrum for Fe3+ ion in KMgF3 : Fe3+ system.Journal of Magnetism and Magnetic Materials,309(1),113-118. |
| MLA | J. F. Li,et al."Theoretical study of electron paramagnetic resonance spectrum for Fe3+ ion in KMgF3 : Fe3+ system".Journal of Magnetism and Magnetic Materials 309.1(2007):113-118. |
入库方式： OAI收割
来源：金属研究所
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