Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4

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	Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4
	S. Y. Wu; H. N. Dong
	2004
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	60 期号:8-9 页码:1991-1994
摘要	The electron paramagnetic resonance (EPR) parameters g factors g(\|\|) and g(perpendicular to) as the local structure for Er3+ in scheelite-type BaWO4 are theoretically investigated by using the perturbation formulas of the EPR parameters for a 4f(11) ion under tetragonal symmetry. In these formulas, the contributions to the EPR parameters arising from the second-order perturbation terms and the admixture of different states are included. It is found that the impurity-ligand bonding angles (or the polar angles) related to the fourfold axis in the tetragonal Er3+ center are about 1.5degrees smaller than those in pure crystal. The calculated EPR parameters are in agreement with the observed values. The validity of the results is discussed. (C) 2003 Elsevier B.V. All rights reserved.
部门归属	univ elect sci & technol china, coll phys elect, dept appl phys, chengdu 610054, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. chongqing univ posts & telecommun, coll elect engn, chongqing 400065, peoples r china.;wu, sy (reprint author), univ elect sci & technol china, coll phys elect, dept appl phys, chengdu 610054, peoples r china;wushaoyi@netease.com
关键词	Electron Paramagnetic Resonance (Epr) Crystal-field Theory And Spin Hamiltonians Local Structure Er3++ Bawo4 Electron-paramagnetic-resonance Superposition-model Phase-transition Crystal Parameters Ion Transformation Tungstate Yb3
URL	查看原文
WOS记录号	WOS:000223116400038
引用统计	被引频次：3[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/321006/35622
专题	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. Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2004,60(8-9):1991-1994.
APA	S. Y. Wu,&H. N. Dong.(2004).Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,60(8-9),1991-1994.
MLA	S. Y. Wu,et al."Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 60.8-9(2004):1991-1994.