EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet

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	EPR theoretical study of local lattice structure of Fe3+ in octahedral site in yttrium gallium garnet
	D. Dong; X. Y. Kuang; J. J. Guo; K. W. Zhou; X. F. Huang
	2005
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	357 期号:3-4 页码:380-385
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.
部门归属	sichuan univ, inst atom & mol phys, dept phys, chengdu 610065, peoples r china. xihua univ, inst phys appl, chengdu 610039, peoples r china. acad sinica, int ctr mat phys, shenyang 110016, peoples r china. sichuan univ, dept phys, chengdu 610065, peoples r china.;kuang, xy (reprint author), sichuan univ, inst atom & mol phys, dept phys, chengdu 610065, peoples r china;scudd@163.com
关键词	Epr Spectra Ligand-field Theory Crystalline Structure Ygg : Fe3++ System Paramagnetic Resonance Spectra Ion Yig
URL	查看原文
WOS记录号	WOS:000227746700020
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34829
专题	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.