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Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals
Li, Bang-Xing1; Zheng, Wen-Chen1,3; Yang, Wei-Qing1,2
Corresponding AuthorZheng, Wen-Chen(zhengwc1@163.com)
2010
Source PublicationRADIATION EFFECTS AND DEFECTS IN SOLIDS
ISSN1042-0150
Volume165Issue:1Pages:11-15
AbstractThis paper reports the theoretical calculations of spin-Hamiltonian (SH) parameters (g factors g(parallel to) and g perpendicular to and hyperfine structure constants A(parallel to) and A(perpendicular to)) for the approximately tetragonal Co2+ center in Na2MgAlF7:Co2+ crystals from the second-order perturbation formulas based on the cluster approach for d(7) ions in tetragonal octahedra with the effective spin S = 1/2. In the calculations, the reduction in the spin-orbit parameters and the orbital reduction factors due to the dynamical Jahn-Teller effect is considered. The calculated SH parameters are in agreement with the experimental values. The defect structure of the Co2+ center, which is consistent with the expectation based on the size of the impurity of the Co2+, and that of the replaced Mg2+, is obtained from the calculations. The results are discussed.
Keywordelectronic paramagnetic resonance defect structure crystal-field theory Co2+ Na2MgAlF7
DOI10.1080/10420150903273856
Indexed BySCI
Language英语
WOS Research AreaNuclear Science & Technology ; Physics
WOS SubjectNuclear Science & Technology ; Physics, Fluids & Plasmas ; Physics, Condensed Matter
WOS IDWOS:000273877200002
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/103245
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
Li, Bang-Xing,Zheng, Wen-Chen,Yang, Wei-Qing. Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals[J]. RADIATION EFFECTS AND DEFECTS IN SOLIDS,2010,165(1):11-15.
APA Li, Bang-Xing,Zheng, Wen-Chen,&Yang, Wei-Qing.(2010).Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals.RADIATION EFFECTS AND DEFECTS IN SOLIDS,165(1),11-15.
MLA Li, Bang-Xing,et al."Investigation on the spin-Hamiltonian parameters and defect structure for Co2+ ions in Na2MgAlF7 crystals".RADIATION EFFECTS AND DEFECTS IN SOLIDS 165.1(2010):11-15.
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