Studies of EPR spectra and defect structure for Er3+ ions in BaF2 and SrF2 crystals

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	Studies of EPR spectra and defect structure for Er3+ ions in BaF2 and SrF2 crystals
	H. Li; X. Y. Kuang; A. J. Mao; C. G. Li
	2013
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	102 页码:169-174
摘要	The local lattice structure and electron paramagnetic resonance (EPR) spectra have been studied systematically by diagonalizing 364 x 364 complete energy matrices for a f(11) ion in a trigonal ligand-field. By simulating the calculated Stark levels and EPR parameters to the experimental results, the shift parameters are determined for Er3+ ions in BaF2 and SrF2. The results show that the trigonal center is attributed to an interstitial F- ion located at the [1 1 1] axis of the cube, and the nearest ligand close to the charge compensator has a displacement towards central ion by 0.042 angstrom for L center in BaF2:Er3+ and 0.026 angstrom for J center in SrF2:Er3+, respectively. Moreover, the relationships between g-factors and shift parameter Delta Z as well as orbit reduction factor k' are discussed. (C) 2012 Elsevier B.V. All rights reserved.
部门归属	[li, hui ; kuang, xiao-yu ; mao, ai-jie ; li, cheng-gang] sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. [kuang, xiao-yu] 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_kuang@163.com
关键词	Electron Paramagnetic Resonance Er3++ Ion Complete Energy Matrices Rare-earth Ions Single-crystals Paramagnetic-resonance Calcium Fluoride Glass-ceramics Doped Baf2 Spectroscopy Symmetry Centers Fields
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71315
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Li,X. Y. Kuang,A. J. Mao,et al. Studies of EPR spectra and defect structure for Er3+ ions in BaF2 and SrF2 crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2013,102:169-174.
APA	H. Li,X. Y. Kuang,A. J. Mao,&C. G. Li.(2013).Studies of EPR spectra and defect structure for Er3+ ions in BaF2 and SrF2 crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,102,169-174.
MLA	H. Li,et al."Studies of EPR spectra and defect structure for Er3+ ions in BaF2 and SrF2 crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 102(2013):169-174.