| Theoretical study of electron paramagnetic resonance spectrum for Fe3+ ion in KMgF3 : Fe3+ system | |
| J. F. Li; X. Y. Kuang; X. F. Huang; C. Lu; A. J. Mao | |
| 2007 | |
| Source Publication | Journal of Magnetism and Magnetic Materials
 |
| ISSN | 0304-8853 |
| Volume | 309Issue:1Pages:113-118 |
| Abstract | 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. |
| description.department | sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. sichuan normal univ, dept phys, chengdu 610066, peoples r china.;kuang, xy (reprint author), sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china;scu_kxy@163.com |
| Keyword | 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++ |
| URL | 查看原文 |
| WOS ID | WOS:000242224500019 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/33636 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
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