Family of paramagnetic centers of Ce3+ ions in yttrium aluminum garnet

被引：20

作者：

Asatryan, G. R. ^{[1
]}

Kramushchenko, D. D. ^{[1
]}

Uspenskaya, Yu. A. ^{[1
]}

Baranov, P. G. ^{[1
]}

Petrosyan, A. G. ^{[2
]}

机构：

[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] Natl Acad Sci Armenia, Inst Phys Res, Yerevan 0203, Armenia

来源：

PHYSICS OF THE SOLID STATE | 2014年 / 56卷 / 06期

关键词：

DEFECTS; CRYSTAL; YAG; SCINTILLATORS;

D O I：

10.1134/S1063783414060031

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electron paramagnetic resonance (EPR) spectra of Ce3+ ions in single crystals of yttrium aluminum garnet have been investigated. It has been found that, in addition to the usually observed EPR signals of Ce3+ ions located in the regular environment at dodecahedral sites of the crystal lattice, the spectra contain a group of less intense anisotropic lines with g-factors close to the corresponding parameters of Ce3+ ions in the regular environment. It has been concluded that the observed satellite lines belong to the family of Ce3+ ions in the immediate vicinity of which there are permutation defects that lead to a change in the strength and symmetry of the crystal field in the vicinity of the paramagnetic center.

引用

页码：1150 / 1156

页数：7

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