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Studies of the EPR parameters and defect models for three Er3+ impurity centers in ThO2 crystals
Zheng Wen-Chen1,3; Qu Gui-Qiang1; Liu Hong-Gang1; Yang Wei-Qing1,2
Corresponding AuthorZheng Wen-Chen(zhengwc1@163.com)
2010-09-15
Source PublicationSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN1386-1425
Volume77Issue:1Pages:276-278
AbstractThe 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.
KeywordElectron paramagnetic resonance Crystal-field theory Defect model Er3+ ThO2
Funding OrganizationICMP, CAS
DOI10.1016/j.saa.2010.05.022
Indexed BySCI
Language英语
Funding ProjectICMP, CAS[ICMP 2009001]
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000282202000044
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/102888
Collection中国科学院金属研究所
Corresponding AuthorZheng Wen-Chen
Affiliation1.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
Recommended Citation
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.
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