Investigations of EPR parameters and defect models for three Yb3+ impurity centers in ThO2 and CeO2 crystals

doi:10.1016/j.physb.2010.02.037

IMR OpenIR

	Investigations of EPR parameters and defect models for three Yb3+ impurity centers in ThO2 and CeO2 crystals
	Liu, Hong-Gang 1; Zheng, Wen-Chen 1,3; Yang, Wei Qing 1,2
通讯作者	Liu, Hong-Gang(kezhouliu@163.com)
	2010-05-01
发表期刊	PHYSICA B-CONDENSED MATTER
ISSN	0921-4526
卷号	405 期号:9 页码:2326-2328
摘要	The electron paramagnetic resonance (EPR) parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants (171)A(parallel to), (171)A(perpendicular to), (173)A(parallel to) and (173)A(perpendicular to)) for three Yb3+ centers, one cubic (center I) and two trigonal (centers II and III). in ThO2 and CeO2 crystals are studied from a complete diagonalization (of energy matrix) method. In the method, the Zeeman and hyperfine interaction terms are added to the classical Hamiltonian and the crystal-field parameters are calculated from the empirical superposition model. From the studies, the EPR parameters for these Yb3+ centers in ThO2 and CeO2 crystals are reasonably explained, the defect model for the trigonal Yb3+ center II suggested in the previous paper is confirmed and the defect structure of center II are also obtained. The theoretical hyperfine structure constants A of two Yb isotopes for centers II and III are suggested and remain to be checked by further experiments. The results are discussed. (C) 2010 Elsevier B.V. All rights reserved.
关键词	Electron paramagnetic resonance Crystal-field theory Defect structure Yb3+ ThO2 and CeO2 crystals
DOI	10.1016/j.physb.2010.02.037
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
WOS记录号	WOS:000277719500036
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：7[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/321006/100236
专题	中国科学院金属研究所
通讯作者	Liu, Hong-Gang
作者单位	1.Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China 2.Chengdu Univ Informat Technol, Dept Opt & Elect, Chengdu 610225, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hong-Gang,Zheng, Wen-Chen,Yang, Wei Qing. Investigations of EPR parameters and defect models for three Yb3+ impurity centers in ThO2 and CeO2 crystals[J]. PHYSICA B-CONDENSED MATTER,2010,405(9):2326-2328.
APA	Liu, Hong-Gang,Zheng, Wen-Chen,&Yang, Wei Qing.(2010).Investigations of EPR parameters and defect models for three Yb3+ impurity centers in ThO2 and CeO2 crystals.PHYSICA B-CONDENSED MATTER,405(9),2326-2328.
MLA	Liu, Hong-Gang,et al."Investigations of EPR parameters and defect models for three Yb3+ impurity centers in ThO2 and CeO2 crystals".PHYSICA B-CONDENSED MATTER 405.9(2010):2326-2328.