Investigation of the EPR g factors and defect structure for the Cu2+-V-Na center in the X-irradiated NaCl: Cu+ crystal

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	Investigation of the EPR g factors and defect structure for the Cu2+-V-Na center in the X-irradiated NaCl: Cu+ crystal
	Y. Mei; W. C. Zheng; Y. G. Yang
	2012
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	407 期号:4 页码:681-683
摘要	The g factors of a tetragonally-compressed Cu2+ center in NaCl: Cu+ crystal X-irradiated at room temperature are calculated from the high-order perturbation formulas based on the two-mechanism model. In the model, the contribution to g factors from both crystal-field (CF) and charge-transfer (CT) mechanisms are included. The calculations are based on the defect model that the tetragonally-compressed Cu(2+)center is assigned to the Cu2+ ion (which is caused by Cu+ ion (at the Na+ site) irradiated by X-ray) associated with a nearest Na+ ion vacancy V-Na along C-4 axis due to charge compensation. From the calculations, the g factors g(parallel to) and g(perpendicular to) are explained and the defect structure (charactering by the displacement Delta Z of the Cl- ion intervening in Cu2+ and V-Na) of the Cu2+ (or Cu2+-V-Na) center is obtained. The results are discussed. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[mei yang] mianyang normal univ, sch phys & elect engn, mianyang 621000, sichuan, peoples r china. [zheng wen-chen; yang yu-guang] 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. [mei yang] caep, res ctr laser fus, mianyang 621000, peoples r china.;mei, y (reprint author), mianyang normal univ, sch phys & elect engn, mianyang 621000, sichuan, peoples r china.;pumermei@163.com; zhengwc1@163.com
关键词	Electron Paramagnetic Resonance (Epr) Defect Structure Crystal- And Ligand-field Theory Nacl Cu2++ Spin-hamiltonian Parameters Jahn-teller Single-crystals Cu2++ Ions Resonance Spectrum Ligand Temperature Transitions
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60157
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Mei,W. C. Zheng,Y. G. Yang. Investigation of the EPR g factors and defect structure for the Cu2+-V-Na center in the X-irradiated NaCl: Cu+ crystal[J]. Physica B-Condensed Matter,2012,407(4):681-683.
APA	Y. Mei,W. C. Zheng,&Y. G. Yang.(2012).Investigation of the EPR g factors and defect structure for the Cu2+-V-Na center in the X-irradiated NaCl: Cu+ crystal.Physica B-Condensed Matter,407(4),681-683.
MLA	Y. Mei,et al."Investigation of the EPR g factors and defect structure for the Cu2+-V-Na center in the X-irradiated NaCl: Cu+ crystal".Physica B-Condensed Matter 407.4(2012):681-683.