Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4

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	Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4
	S. Y. Wu; H. N. Dong; W. H. Wei
	2005
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	61 期号:13-14 页码:2886-2890
摘要	The spin-Hamiltonian (SH) parameters g factors g(parallel to), g(perpendicular to) and the hyperfine structure parameters A(parallel to) and A(perpendicular to) for Er3+ at the tetragonally distorted dodecahedral Th4+ site in ThGeO4 are theoretically investigated by using the perturbation formulas of the SH parameters for a 4f(11) ion in tetragonal symmetry. In these formulas, the contributions to the SH parameters from the second-order perturbation terms and the admixture of various energy levels are taken into account. The related crystal-field parameters are calculated from the geometrical relationship of the impurity center and the superposition model. Based on the studies, the lowest Kramers doublet is found to be Gamma(7), rather than Gamma(6) suggested in the previous work. The calculated SH parameters for Gamma(7) doublet in this work are smaller than those obtained for Gamma(6) doublet in the previous work and in good agreement with the observed values. The various contributions to the SH parameters are discussed. (c) 2004 Elsevier B.V. All rights reserved.
部门归属	univ elect sci & technol china, 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, dept appl phys, chengdu 610054, peoples r china;wushaoyi@netease.com
关键词	Electron Paramagnetic Resonance Crystal Fields And Spin-hamiltonians Er3++ Thgeo4 Superposition-model Crystal Laser Field Yvo4 Ions
URL	查看原文
WOS记录号	WOS:000232317000012
引用统计	被引频次：1[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/321006/35131
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,W. H. Wei. Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2005,61(13-14):2886-2890.
APA	S. Y. Wu,H. N. Dong,&W. H. Wei.(2005).Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,61(13-14),2886-2890.
MLA	S. Y. Wu,et al."Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 61.13-14(2005):2886-2890.