EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet
文献类型：期刊论文
| 作者 | D. Dong ; X. Y. Kuang ; J. J. Guo ; K. W. Zhou ; X. F. Huang |
| 刊名 | Physica B-Condensed Matter
 |
| 出版日期 | 2005 |
| 卷号 | 357期号:3-4页码:380-385 |
| 关键词 | EPR spectra ligand-field theory crystalline structure YGG : Fe3+ system paramagnetic resonance spectra ion yig |
| ISSN号 | 0921-4526 |
| 中文摘要 | By analyzing the EPR parameters D and (a-F) of Fe3+ ion located at octahedral site in yttrium gallium garnet, the local lattice structure around Fe3+ ion in the crystal has been investigated on the basis of the complete energy matrices for a d(5) configuration ion in a trigonal ligand field. It is shown that there exists a slight expansion distortion in the local lattice structure and the distortion is different at 4.2 and 295 K. This result may be attributed to the fact that the radius of Fe3(+) ion is larger than that of Ga3+ ion, and the Fe3+ ion will push the two oxygen triangles to move upwards and downwards, respectively, along C-3-axis when the temperature decreases. From EPR calculation, the local lattice structure parameters R = 2.0068 angstrom, theta = 51.4691 degrees at 295 K and R = 2.010 angstrom, theta = 51.3706 degrees at 4.2 K for octahedral Fe3+ centre in yttrium gallium garnet are determined. (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/321006/34829]  |
| 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 | D. Dong,X. Y. Kuang,J. J. Guo,et al. EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet[J]. Physica B-Condensed Matter,2005,357(3-4):380-385. |
| APA | D. Dong,X. Y. Kuang,J. J. Guo,K. W. Zhou,&X. F. Huang.(2005).EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet.Physica B-Condensed Matter,357(3-4),380-385. |
| MLA | D. Dong,et al."EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet".Physica B-Condensed Matter 357.3-4(2005):380-385. |
入库方式： OAI收割
来源：金属研究所
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