Investigations of spin-Hamiltonian parameters and defect structure for Mn4+ in Al2O3 from a two-mechanism model

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	Investigations of spin-Hamiltonian parameters and defect structure for Mn4+ in Al2O3 from a two-mechanism model
	X. X. Wu; W. L. Feng; W. Fang; W. C. Zheng
	2008
发表期刊	Physica Status Solidi B-Basic Solid State Physics
ISSN	0370-1972
卷号	245 期号:4 页码:756-760
摘要	The complete high-order perturbation formulas based on a two-mechanism model for the spin-Hamiltonian (SH) parameters (g-factors g(parallel to), g(perpendicular to), and zero-field splitting D) of 3d(3) ions in trigonal octahedral sites are derived. In the model, not only the conventional contribution to SH parameters from the crystal-field (CF) mechanism, but also that from the charge-transfer (CT) mechanism (which is omitted in the CF theory) are included. From these formulas, the SH parameters of Mn4+ replacing Al3+ in Al2O3 crystal are calculated by using the parameters related to the optical spectral data and the defect structure of the studied system. The results (including the relative importance of the CT mechanism on the SH parameters and the defect structure of Mn4+ impurity center) are discussed. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
部门归属	[wu, xiao-xuan] civil aviat flight univ china, dept phys, guanghan 618307, peoples r china. [feng, wen-lin] chongqing inst technol, dept appl phys, chongqing 400050, peoples r china. [fang, wang] sichuan univ, dept mat sci, chengdu 610064, peoples r china. [zheng, wen-chen] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;wu, xx (reprint author), civil aviat flight univ china, dept phys, guanghan 618307, peoples r china;wxxdd@163.com
关键词	Electron-paramagnetic-resonance Other-orbit Interactions Crystal Fields Optical Spectra Epr Parameters Ions Cr3++ Luminescence Spectroscopy 3d(8)
URL	查看原文
WOS记录号	WOS:000255201500021
引用统计	被引频次：4[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/321006/33215
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Wu,W. L. Feng,W. Fang,et al. Investigations of spin-Hamiltonian parameters and defect structure for Mn4+ in Al2O3 from a two-mechanism model[J]. Physica Status Solidi B-Basic Solid State Physics,2008,245(4):756-760.
APA	X. X. Wu,W. L. Feng,W. Fang,&W. C. Zheng.(2008).Investigations of spin-Hamiltonian parameters and defect structure for Mn4+ in Al2O3 from a two-mechanism model.Physica Status Solidi B-Basic Solid State Physics,245(4),756-760.
MLA	X. X. Wu,et al."Investigations of spin-Hamiltonian parameters and defect structure for Mn4+ in Al2O3 from a two-mechanism model".Physica Status Solidi B-Basic Solid State Physics 245.4(2008):756-760.