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Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal
Yang, Yu-Guang1; Zheng, Wen-Chen1,3; Su, Ping1; Yang, Wei-Qing1,2
Corresponding AuthorZheng, Wen-Chen(zhengwc1@163.com)
2010-12-01
Source PublicationPHYSICA B-CONDENSED MATTER
ISSN0921-4526
Volume405Issue:23Pages:4871-4874
AbstractBy using the distortion model that the tetragonal site symmetry of Cr5+ in cubic phase of SrTiO3 originates from the static Jahn-Teller effect, the spin-Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel to), A(perpendicular to)) of this tetragonally compressed Cr5+ center in SrTiO3 are calculated from the high-order perturbation formulas based on a two-mechanism model. In the model, not only the contribution to spin-Hamiltonian parameters due to the crystal-field mechanism, but also that due to the charge-transfer mechanism (which is omitted in the extensively used crystal-field theory) are included. The calculated results are in reasonable agreement with the experimental values. The tetragonal compression (characterized by Delta R=R-perpendicular to - R-parallel to, where R-perpendicular to and R-parallel to denote the metal-ligand distances perpendicular to and parallel with the C-4 axis) of Cr5+ center is also obtained from the calculation. The results (including the tetragonal compression and the relative importance of the charge-transfer mechanism) are discussed. (C) 2010 Elsevier B.V. All rights reserved.
KeywordElectron paramagnetic resonance Defect structure Jahn-Teller effect Cr5+ SrTiO3
DOI10.1016/j.physb.2010.09.024
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000285081600030
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/100650
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
Yang, Yu-Guang,Zheng, Wen-Chen,Su, Ping,et al. Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal[J]. PHYSICA B-CONDENSED MATTER,2010,405(23):4871-4874.
APA Yang, Yu-Guang,Zheng, Wen-Chen,Su, Ping,&Yang, Wei-Qing.(2010).Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal.PHYSICA B-CONDENSED MATTER,405(23),4871-4874.
MLA Yang, Yu-Guang,et al."Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal".PHYSICA B-CONDENSED MATTER 405.23(2010):4871-4874.
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