Effect of hydrostatic pressure on the free-ion parameters and the crystal-field strength for YOCl : Eu3+

	Effect of hydrostatic pressure on the free-ion parameters and the crystal-field strength for YOCl : Eu3+
其他题名	论文其他题名
	Chi Y. B.; Liu S. X.; Pan Y. W.
	2001
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	325 期号:1—2 页码:95-101
摘要	The fluorescence spectra of Eu3+ in YOCl:Eu3+ were measured under pressure up to 10.3 GPa at room temperature. The pressure dependence of the crystal-field levels of the F-7(0-4) and D-5(0-2) multiplets for the Eu3+ ion was determined from the spectra. From the simulations of the experimental data, the free-ion parameters F-2 and zeta, the crystal-field parameters B-q(k) and the crystal-field strength parameter S-t were obtained at Various pressures. The result of the simulation shows that the crystal-field strength increases with pressurization, which is contrary to the results of its isomorphic compounds, e.g. LaOCl and LaOBr doped with Eu3+. The electrostatic repulsion and the spin-orbit coupling interactions of 4f electrons decrease with increasing pressure. The central-held covalency mechanism and the symmetry-restricted covalency mechanism play a leading role in the relative reductions of zeta and F-2, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25226
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chi Y. B.,Liu S. X.,Pan Y. W.. Effect of hydrostatic pressure on the free-ion parameters and the crystal-field strength for YOCl : Eu3+[J]. Journal of Alloys and Compounds,2001,325(1—2):95-101.
APA	Chi Y. B.,Liu S. X.,&Pan Y. W..(2001).Effect of hydrostatic pressure on the free-ion parameters and the crystal-field strength for YOCl : Eu3+.Journal of Alloys and Compounds,325(1—2),95-101.
MLA	Chi Y. B.,et al."Effect of hydrostatic pressure on the free-ion parameters and the crystal-field strength for YOCl : Eu3+".Journal of Alloys and Compounds 325.1—2(2001):95-101.

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