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Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4
Wu, SY; Dong, HN; Wei, WH
Corresponding AuthorWu, SY(wushaoyi@netease.com)
2005-10-01
Source PublicationSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN1386-1425
Volume61Issue:13-14Pages:2886-2890
AbstractThe spin-Hamiltonian (SH) parameters g factors g(parallel to), g(perpendicular to) and the hyperfine structure parameters A(parallel to) and A(perpendicular to) for Er3+ at the tetragonally distorted dodecahedral Th4+ site in ThGeO4 are theoretically investigated by using the perturbation formulas of the SH parameters for a 4f(11) ion in tetragonal symmetry. In these formulas, the contributions to the SH parameters from the second-order perturbation terms and the admixture of various energy levels are taken into account. The related crystal-field parameters are calculated from the geometrical relationship of the impurity center and the superposition model. Based on the studies, the lowest Kramers doublet is found to be Gamma(7), rather than Gamma(6) suggested in the previous work. The calculated SH parameters for Gamma(7) doublet in this work are smaller than those obtained for Gamma(6) doublet in the previous work and in good agreement with the observed values. The various contributions to the SH parameters are discussed. (c) 2004 Elsevier B.V. All rights reserved.
Keywordelectron paramagnetic resonance crystal fields and spin-Hamiltonians Er3+ ThGeO4
DOI10.1016/j.saa.2004.10.036
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000232317000012
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82078
Corresponding AuthorWu, SY
Affiliation1.Univ Elect Sci & Technol China, 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,Wei, WH. Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2005,61(13-14):2886-2890.
APA Wu, SY,Dong, HN,&Wei, WH.(2005).Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,61(13-14),2886-2890.
MLA Wu, SY,et al."Investigations of the spin-Hamiltonian parameters for Er3+ at the Th4+ site in ThGeO4".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 61.13-14(2005):2886-2890.
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