Electron paramagnetic resonance of Ce3+ ions in lead thiogallate single crystals

被引：2
|
作者：
Asatryan, G. R. [1 ]
Badikov, V. V. [2 ]
Kramushchenko, D. D. [1 ]
Khramtsov, V. A. [1 ]
机构：
[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[2] Kuban State Univ, Krasnodar 350040, Russia
来源：
PHYSICS OF THE SOLID STATE | 2012年 / 54卷 / 10期
基金：
俄罗斯基础研究基金会;
关键词：
LUMINESCENCE;
D O I：
10.1134/S1063783412100071
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The results of electron paramagnetic resonance (EPR) studies of Ce3+ impurity ions in single crystals of lead thiogallate PbGa2S4 have been reported. The Ce3+ ions substitute for Pb2+ ions in the crystal lattice of PbGa2S4. A number of paramagnetic cerium centers in lead thiogallate have been observed. The spectra are described by the spin Hamiltonian of rhombic symmetry with the effective spin S = 1/2. The g factors of the main cerium centers have been determined. A large number of paramagnetic centers are due to both nonequivalent positions of lead and local charge compensation under the substitution Ce3+ -> Pb2+.
引用
收藏
页码：2057 / 2060
页数：4
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