Temperature-dependent photoluminescence in La2/3Ca1/3MnO3

	Temperature-dependent photoluminescence in La2/3Ca1/3MnO3
其他题名	论文其他题名
	Ding T.; Zheng W. T.; Tian H. W.; Zang J. F.; Zhao Z. D.; Yu S. S.; Li X. T.; Meng F. L.; Wang Y. M.; Kong X. G.
	2004
发表期刊	Solid State Communications
ISSN	0038-1098
卷号	132 期号:12 页码:815-819
摘要	Visible photoluminescence and its temperature dependence of La2/3Ca1/3MnO3 in the temperature range 138-293 K were measured. It was observed that the main broad band centered at similar to 1.77 eV with the shoulders at similar to 1.57 and similar to 1.90 eV existed in the entire temperature range. It can be well fitted by three Gaussian curves B-1, B-2 and B-3 centered at similar to 1.52, similar to 1.75 and similar to 1.92 eV, respectively. The intensities of the peak B-1 and B-2 vary as temperature increases. In the entire temperature range, the intensity of B-1 increases with increasing temperature, whereas that of B-2 decreases. The photoluminescence mechanisms for La2/3Ca1/3MnO3 are presented based on the electronic structures formed by the interactions among spin, charge and lattice, in which B-1 was identified with the charge transfer excitation of an electron from the lower Jahn-Teller split e(g) level of a Mn3+ ion to the e(g) level of an adjacent Mn4+ ion, B-2 is assigned to the transition between the spin up and spin down e(g) bands separated by Hund's coupling energy E-J and B-3 is attributed to the transition, determined by the crystal field energy E-C between a t(2g) core electron of Mn3+ to the spin up e(g) bands of Mn4+ by a dipole allowed charge transfer process. (C) 2004 Elsevier Ltd. 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/181722/25047
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Ding T.,Zheng W. T.,Tian H. W.,et al. Temperature-dependent photoluminescence in La2/3Ca1/3MnO3[J]. Solid State Communications,2004,132(12):815-819.
APA	Ding T..,Zheng W. T..,Tian H. W..,Zang J. F..,Zhao Z. D..,...&Kong X. G..(2004).Temperature-dependent photoluminescence in La2/3Ca1/3MnO3.Solid State Communications,132(12),815-819.
MLA	Ding T.,et al."Temperature-dependent photoluminescence in La2/3Ca1/3MnO3".Solid State Communications 132.12(2004):815-819.

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