Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals

doi:10.1016/j.saa.2010.05.022

IMR OpenIR

	Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals
	Zheng Wen-Chen 1,3; Qu Gui-Qiang 1; Liu Hong-Gang 1; Yang Wei-Qing 1,2
通讯作者	Zheng Wen-Chen(zhengwc1@163.com)
	2010-09-15
发表期刊	SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN	1386-1425
卷号	77 期号:1 页码:276-278
摘要	The electron paramagnetic resonance (EPR) parameters (g factors and hyperfine structure constants of the ground state, and g factors of the first excited state) of three (one cubic and two trigonal) Er3+ centers in fluoride-type ThO2 crystal are studied from a diagonalization (of energy matrix) method. In the method, the Zeeman and hyperfine interaction terms are added to the classical Hamiltonian, and a 52 x 52 energy matrix concerning the ground multiplet I-4(15/2) and the first to third excited multiplets I-4(13/2), I-4(11/2) and I-4(9/2) is established for a 4f(11) ion in trigonal crystal field and under an external magnetic field. From the studies, the EPR parameters for three Er3+ centers in ThO2 are reasonably explained, the defect models for the two trigonal Er3+ centers suggested in the previous paper are confirmed and the defect structures of the two trigonal centers are obtained. The results are discussed. (c) 2010 Elsevier B.V. All rights reserved.
关键词	Electron paramagnetic resonance Crystal-field theory Defect model Er3+ ThO2
资助者	ICMP, CAS
DOI	10.1016/j.saa.2010.05.022
收录类别	SCI
语种	英语
资助项目	ICMP, CAS[ICMP 2009001]
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000282202000044
出版者	PERGAMON-ELSEVIER SCIENCE LTD
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/321006/102888
专题	中国科学院金属研究所
通讯作者	Zheng Wen-Chen
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	Zheng Wen-Chen,Qu Gui-Qiang,Liu Hong-Gang,et al. Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2010,77(1):276-278.
APA	Zheng Wen-Chen,Qu Gui-Qiang,Liu Hong-Gang,&Yang Wei-Qing.(2010).Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,77(1),276-278.
MLA	Zheng Wen-Chen,et al."Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 77.1(2010):276-278.