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Theoretical investigations of the spin Hamiltonian parameters and the local structure of a trigonal Co2+ center in Bi4Ge3O12
Wu, SY; Dong, HN
Corresponding AuthorWu, SY(shaoyi_wu@163.com)
2004-09-01
Source PublicationZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
ISSN0932-0784
Volume59Issue:9Pages:563-567
AbstractThe spin Hamiltonian parameters anisotropic g factors g(\\), g(perpendicular to) and hyperfine structure constants A(\\) and A I, as well as the local structure of the trigonal Co2+ center in Bi4Ge3O12 (BGO) are theoretically investigated by the perturbation formulas of the spin Hamiltonian parameters for a V ion in trigonal symmetry, based on the cluster approach. It is found that the impurity Co2+ substituting the host Bi3+ undergoes an off-center displacement DeltaZ(approximate to -0.132 Angstrom) away from the center of the oxygen octahedron along the C-3 axis. The spin Hamiltonian parameters based on the above displacement show reasonable agreement with the observed values. The results are discussed.
Keywordelectron paramagnetic resonance (EPR) crystal-field theory and spin hamiltonians defect structure Co2+ Bi4Ge3O12 (BGO)
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Multidisciplinary
WOS IDWOS:000224098900006
PublisherVERLAG Z NATURFORSCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82336
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 110015, Peoples R China
3.Chongqing Univ, Coll Elect Engn, Chongqing 400065, Peoples R China
Recommended Citation
GB/T 7714
Wu, SY,Dong, HN. Theoretical investigations of the spin Hamiltonian parameters and the local structure of a trigonal Co2+ center in Bi4Ge3O12[J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,2004,59(9):563-567.
APA Wu, SY,&Dong, HN.(2004).Theoretical investigations of the spin Hamiltonian parameters and the local structure of a trigonal Co2+ center in Bi4Ge3O12.ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,59(9),563-567.
MLA Wu, SY,et al."Theoretical investigations of the spin Hamiltonian parameters and the local structure of a trigonal Co2+ center in Bi4Ge3O12".ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES 59.9(2004):563-567.
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