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Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4
Wu, SY; Dong, HN
Corresponding AuthorWu, SY(wushaoyi@netease.com)
2004-07-01
Source PublicationSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN1386-1425
Volume60Issue:8-9Pages:1991-1994
AbstractThe electron paramagnetic resonance (EPR) parameters g factors g(||) and g(perpendicular to) as the local structure for Er3+ in scheelite-type BaWO4 are theoretically investigated by using the perturbation formulas of the EPR parameters for a 4f(11) ion under tetragonal symmetry. In these formulas, the contributions to the EPR parameters arising from the second-order perturbation terms and the admixture of different states are included. It is found that the impurity-ligand bonding angles (or the polar angles) related to the fourfold axis in the tetragonal Er3+ center are about 1.5degrees smaller than those in pure crystal. The calculated EPR parameters are in agreement with the observed values. The validity of the results is discussed. (C) 2003 Elsevier B.V. All rights reserved.
Keywordelectron paramagnetic resonance (EPR) crystal-field theory and spin Hamiltonians local structure Er3+ BaWO4
DOI10.1016/j.saa.2003.10.016
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000223116400038
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81498
Corresponding AuthorWu, SY
Affiliation1.Univ Elect Sci & Technol China, Coll Phys Elect, Dept Appl Phys, Chengdu 610054, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
3.Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
Recommended Citation
GB/T 7714
Wu, SY,Dong, HN. Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2004,60(8-9):1991-1994.
APA Wu, SY,&Dong, HN.(2004).Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,60(8-9),1991-1994.
MLA Wu, SY,et al."Theoretical investigations of the EPR g factors and the local structure for Er3+ in BaWO4".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 60.8-9(2004):1991-1994.
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