Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal

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	Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal; Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal
	W. C. Zheng; F. Wang; H. Lv; M. Yang
	2008 ; 2008
发表期刊	Journal of Alloys and Compounds ; Journal of Alloys and Compounds
ISSN	0925-8388 ; 0925-8388
卷号	453 期号:1-2 页码:32-35
摘要	The spin Hamiltonian (SH) parameters (g factors g(x), g(y), g(z) and hyperfine structure constants A(x), A(y), A(z)) of the low-symmetry Nb-Li(4+) antisite defect center in the X-ray-irradiated congruent undoped LiNbO3 crystal are calculated from the high-order perturbation formulas of SH parameters for d(1) ions. The calculated results are in reasonable agreement with the experimental values. Some information related to the defect structure of the Nb-Li(4+) center (characterized mainly by the Nb-Li(4+) displacement Delta z from the ideal Li+ site along C-3 axis and the displacement Delta x of O2- ions in the oxygen triangle between Nb-Li(4+) and Nb-Nb(5+)) is obtained from the calculations. These displacements are consistent with the expectation based on the electrostatic interaction and electron cloud overlap. The results are discussed. (C) 2006 Elsevier B.V. All rights reserved.; The spin Hamiltonian (SH) parameters (g factors g(x), g(y), g(z) and hyperfine structure constants A(x), A(y), A(z)) of the low-symmetry Nb-Li(4+) antisite defect center in the X-ray-irradiated congruent undoped LiNbO3 crystal are calculated from the high-order perturbation formulas of SH parameters for d(1) ions. The calculated results are in reasonable agreement with the experimental values. Some information related to the defect structure of the Nb-Li(4+) center (characterized mainly by the Nb-Li(4+) displacement Delta z from the ideal Li+ site along C-3 axis and the displacement Delta x of O2- ions in the oxygen triangle between Nb-Li(4+) and Nb-Nb(5+)) is obtained from the calculations. These displacements are consistent with the expectation based on the electrostatic interaction and electron cloud overlap. The results are discussed. (C) 2006 Elsevier B.V. All rights reserved.
部门归属	[zheng, wen-chen; wang, fang; lv, he; yang, mei] 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.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhengwc1@163.com ; [zheng, wen-chen; wang, fang; lv, he; yang, mei] 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.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhengwc1@163.com
关键词	Ferroelectrics Ferroelectrics Inorganic Compounds Inorganic Compounds Crystal And ligAnd Fields Crystal And ligAnd Fields Point Point Defect Defect Electron Paramagnetic Resonance (Epr) Electron Paramagnetic Resonance (Epr) Temperature-dependence Temperature-dependence Lithium-niobate Lithium-niobate Epr Parameters Epr Parameters Cr3++ Centers Cr3++ Centers Endor Endor Ions Ions Ruby Ruby
URL	查看原文 ; 查看原文
WOS记录号	WOS:000254899700009 ; WOS:000254899700009
引用统计	被引频次：7[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/321006/33383
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Zheng,F. Wang,H. Lv,et al. Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal, Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal[J]. Journal of Alloys and Compounds, Journal of Alloys and Compounds,2008, 2008,453, 453(1-2):32-35, 32-35.
APA	W. C. Zheng,F. Wang,H. Lv,&M. Yang.(2008).Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal.Journal of Alloys and Compounds,453(1-2),32-35.
MLA	W. C. Zheng,et al."Spin Hamiltonian parameters and defect structure for the X-ray-induced NbLi4+ center in LiNbO3 crystal".Journal of Alloys and Compounds 453.1-2(2008):32-35.