Investigations of the spin-Hamiltonian parameters and tetragonal compression due to the static Jahn-Teller effect for Cr5+ center in cubic SrTiO3 crystal

doi:10.1016/j.physb.2010.09.024

IMR OpenIR

	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-Guang 1; Zheng, Wen-Chen 1,3; Su, Ping 1; Yang, Wei-Qing 1,2
通讯作者	Zheng, Wen-Chen(zhengwc1@163.com)
	2010-12-01
发表期刊	PHYSICA B-CONDENSED MATTER
ISSN	0921-4526
卷号	405 期号:23 页码:4871-4874
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.
关键词	Electron paramagnetic resonance Defect structure Jahn-Teller effect Cr5+ SrTiO3
DOI	10.1016/j.physb.2010.09.024
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
WOS记录号	WOS:000285081600030
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/100650
专题	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.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
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.