Electron Magnetic Resonance of Eu2+ in SrCl2:Eu Single Crystal

被引：5
作者：
Lee, Soo Hyung [1 ]
Yeom, Tae Ho [1 ]
Kim, Sung-Hwan [2 ]
机构：
[1] Cheongju Univ, Dept Laser & Opt Informat Engn, Cheongju 360764, South Korea
[2] Cheongju Univ, Dept Radiol Sci, Cheongju 360764, South Korea
来源：
JOURNAL OF MAGNETICS | 2012年 / 17卷 / 04期
关键词：
EPR; SrCl2:Eu crystal; Eu2+ impurity; clustered Eu2+ ions; PARAMAGNETIC-RESONANCE; ION-PAIRS; SPECTRA; ZNS; LUMINESCENCE; TRANSITIONS; CHLORIDE; MN;
D O I：
10.4283/JMAG.2012.17.4.251
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electron paramagnetic resonance (EPR) of the Eu2+ ion in SrCl2:Eu single crystal has been investigated using an X-band spectrometer. The angular dependence of magnetic resonance positions for the Eu2+ impurity ion in the crystallographic aa-plane is analyzed with effective spin-Hamiltonian. The EPR spectra of the isolated Eu2+ center merged to each other. The hyperfine splitting of the isolated Eu2+ center due to the Eu-151 nucleus is approximately 35 G. Three kinds of Eu2+ centers except the isolated Eu2+ center, Eu2+ pairs, Eu2+ triples, and other Eu2+ clusters, are split from the fitting of the integrated experimental spectrum with the Gaussian curve. The calculated spectroscopic splitting parameters of the Eu2+ pairs, Eu2+ triples, and other Eu2+ clusters in SrCl2:Eu crystal are g(1) = 2.06, g(2) = 1.94, and g(3) = 1.93, respectively.
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页码：251 / 254
页数：4
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