Effect of pressure on the electron state of Eu3+ in GdOBr

	Effect of pressure on the electron state of Eu3+ in GdOBr
其他题名	论文其他题名
	Chi Y. B.; Liu S. X.; Li H. N.; Zhao X. Y.; Wang L. Z.
	1997
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	256 期号:1—2 页码:1-8
摘要	The fluorescence spectra of the Eu(3+)ion in GdOBr:Eu3+ were measured under pressures up to 12.4 GPa at room temperature. The dependence of the CF levels of the D-5(0-2) and F-7(0-4) multiplets for the Eu3+ ion on pressure was obtained from the spectra. Below 8 Gpa with increasing pressure the splittings of the multiplets studied do not increase and that of the F-7(1), F-7(3) and D-5(1) multiplets decrease obviously. At higher pressure, the splittings of the F-7(1),F-7(3) and D-5(1) multiplets increase slowly. On the basis of the experimental data, the free-ion parameters F-2 and zeta, the crystal-field parameters B-q(k), and the crystal-field strength parameters S were determined at different pressures. The values of F-2 and zeta always reduce with pressure. The central-field covalency mechanism is dominant for the reduction of F-2 and zeta. (C) 1997 Elsevier Science S.A.
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/181722/25386
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.,Li H. N.,et al. Effect of pressure on the electron state of Eu3+ in GdOBr[J]. Journal of Alloys and Compounds,1997,256(1—2):1-8.
APA	Chi Y. B.,Liu S. X.,Li H. N.,Zhao X. Y.,&Wang L. Z..(1997).Effect of pressure on the electron state of Eu3+ in GdOBr.Journal of Alloys and Compounds,256(1—2),1-8.
MLA	Chi Y. B.,et al."Effect of pressure on the electron state of Eu3+ in GdOBr".Journal of Alloys and Compounds 256.1—2(1997):1-8.

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