Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal
文献类型：期刊论文
| 作者 | Yang, Yu-Guang1; Zheng, Wen-Chen1,2; Su, Ping1; Yang, Wei-Qing1,3 |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 405期号:23页码:4871-4874 |
| 关键词 | Electron paramagnetic resonance Defect structure Jahn-Teller effect Cr5+ SrTiO3 |
| ISSN号 | 0921-4526 |
| DOI | 10.1016/j.physb.2010.09.024 |
| 通讯作者 | Zheng, Wen-Chen(zhengwc1@163.com) |
| 英文摘要 | By 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. |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000285081600030 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.imr.ac.cn/handle/321006/100647]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zheng, Wen-Chen |
| 作者单位 | 1.Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China 3.Chengdu Univ Informat & Technol, Dept Opt & Elect, Chengdu 610225, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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