Tetragonal distortions of some tetragonal Cr3+ centers in fluoroperovskite ABF(3) crystals

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	Tetragonal distortions of some tetragonal Cr3+ centers in fluoroperovskite ABF(3) crystals
	Q. Zhou; H. Y. Wu; X. X. Wu; W. C. Zheng
	2006
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	64 期号:4 页码:945-948
摘要	The tetragonal distortions [characterized by the displacement Delta R of the F- ion intervening in Cr3+ and V-B (B2+ vacancy) or M+ ion in B2+ site] for Cr3+-V-B and Cr3+-Li+ centers in Cr3+-doped fluoroperovskites KBF3 (B = Mg, Zn) and ACdF(3) (A = K, Rb, Cs) and also for Cr3+-Na+ center in KZnF3 have been studied by calculating the EPR parameters D, g(parallel to) and g(perpendicular to) from the crystal-field theory. From the studies, an interesting trend is suggested, i.e., when the size of the co-doped monovalent impurity M+ in the nearest neighbor B2+ site is comparable to that of the replaced B 2, ion, the displacement Delta R of the intervening F- ion in Cr3+-M+ center is smaller than that in Cr3+-V-B center and if the M+ iron is much smaller or much larger than that of the replaced B2+ ion, the displacement Delta R in Cr3+-M+ center is greater than that in Cr3+-V-B center. The causes of the trend are discussed. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	sichuan univ, dept mat sci, chengdu 610064, peoples r china. civil avial flying inst china, dept phys, guanghan 618307, peoples r china. 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	Defect Structure Electron Paramagnetic Resonance (Epr) Crystal-field Theory Fluoroperovskites Cr3++ Spectroscopic Properties Impurity Ions Laser
URL	查看原文
WOS记录号	WOS:000238523100018
引用统计	被引频次：6[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/321006/34767
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Zhou,H. Y. Wu,X. X. Wu,et al. Tetragonal distortions of some tetragonal Cr3+ centers in fluoroperovskite ABF(3) crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2006,64(4):945-948.
APA	Q. Zhou,H. Y. Wu,X. X. Wu,&W. C. Zheng.(2006).Tetragonal distortions of some tetragonal Cr3+ centers in fluoroperovskite ABF(3) crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,64(4),945-948.
MLA	Q. Zhou,et al."Tetragonal distortions of some tetragonal Cr3+ centers in fluoroperovskite ABF(3) crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 64.4(2006):945-948.