Investigations of the electron paramagnetic resonance g factors Er3+-V-K for the trigonal ErK centers in KMF3 (M = Mg and Zn)
文献类型：期刊论文
| 作者 | S. Y. Wu ; H. N. Dong ; W. H. Wei |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2004 |
| 卷号 | 283期号:2-3页码:270-275 |
| 关键词 | electron paramagnetic resonance (EPR) defects and impurities crystal-field and spin hamiltonians Er3+ KMF3 (M = Mg and Zn) crystal-field superposition-model perovskite kmgf3 conversion parameters fluorides kznf3 |
| ISSN号 | 0304-8853 |
| 中文摘要 | The electron paramagnetic resonance g factors g(parallel to) and g(perpendicular to) for the trigonal Er3+-V-K centers (where V-K denotes K+ vacancy) in KMF3 (M = Mg and Zn) are theoretically investigated from the perturbation formulas of the g factors for a 4f(11) ion in trigonal symmetry. In these formulas, the contributions to the g factors from the second-order perturbation terms and the admixture of various energy levels are taken into account. In the above trigonal centers, the impurity Er3+ resides in the octahedral M2+ site of both crystals, associated with one V-K in the C-3-axis due to charge compensation. By analyzing their g factors, we find that the impurity Er3+ in both centers would move towards the V-K by an amount DeltaZ along the C-3-axis due to electrostatic attraction. The calculated g factors for the Er3+ centers based on the above displacements DeltaZ show good agreement with the observed values. The validity of the results is discussed. (C) 2004 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35626]  |
| 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 | S. Y. Wu,H. N. Dong,W. H. Wei. Investigations of the electron paramagnetic resonance g factors Er3+-V-K for the trigonal ErK centers in KMF3 (M = Mg and Zn)[J]. Journal of Magnetism and Magnetic Materials,2004,283(2-3):270-275. |
| APA | S. Y. Wu,H. N. Dong,&W. H. Wei.(2004).Investigations of the electron paramagnetic resonance g factors Er3+-V-K for the trigonal ErK centers in KMF3 (M = Mg and Zn).Journal of Magnetism and Magnetic Materials,283(2-3),270-275. |
| MLA | S. Y. Wu,et al."Investigations of the electron paramagnetic resonance g factors Er3+-V-K for the trigonal ErK centers in KMF3 (M = Mg and Zn)".Journal of Magnetism and Magnetic Materials 283.2-3(2004):270-275. |
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来源：金属研究所
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