EPR theoretical study of local lattice structure in YAG : Mn2+ system

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	EPR theoretical study of local lattice structure in YAG : Mn2+ system
	G. D. Li; X. Y. Kuang; H. Wang; X. Yang; X. M. Tan
	2006
发表期刊	Journal of Physics and Chemistry of Solids
ISSN	0022-3697
卷号	67 期号:11 页码:2322-2325
摘要	By diagonalizing a set of complete energy matrices constructed for a d(5) configuration ion in a trigonal ligand field, a reasonable interpretation is obtained for the EPR zero-field splitting of Mn2+ ions located at octahedral sites in yttrium aluminum garnet. It is shown that the local lattice structure around an octahedrally coordinated Mn2+ center has an expansion distortion, which may be attributed to the fact that the radius of Mn2+ ion is larger than that of Al3+ ion, and the Mn2+ ion will push the oxygen ligands outwards. Simultaneously, the local lattice structure distortion parameters Delta R = 0.1825-0.2158 A and Delta theta = 1.220 degrees-1.315 degrees for the octahedral Mn2+ center in the crystal are determined, respectively. Meanwhile, we also demonstrated that the empirical impurity-ligand distance R approximate to R-H + 1/2(r(i)-r(h)) is not suitable for the YAG:Mn2+ system which has been approximately taken in previous works. (c) 2006 Elsevier Ltd. All rights reserved.
部门归属	sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. acad sinica, int ctr mat phys, shenyang 110016, peoples r china.;kuang, xy (reprint author), sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china;scu_kxy@163.com
关键词	Epr Crystal Structure Ions Crystals Spectra Fe-3++ Field Mn2
URL	查看原文
WOS记录号	WOS:000241849900012
引用统计	被引频次：2[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/321006/34297
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. D. Li,X. Y. Kuang,H. Wang,et al. EPR theoretical study of local lattice structure in YAG : Mn2+ system[J]. Journal of Physics and Chemistry of Solids,2006,67(11):2322-2325.
APA	G. D. Li,X. Y. Kuang,H. Wang,X. Yang,&X. M. Tan.(2006).EPR theoretical study of local lattice structure in YAG : Mn2+ system.Journal of Physics and Chemistry of Solids,67(11),2322-2325.
MLA	G. D. Li,et al."EPR theoretical study of local lattice structure in YAG : Mn2+ system".Journal of Physics and Chemistry of Solids 67.11(2006):2322-2325.