Radiation defects in LiBaF3 perovskites

被引：0

作者：

Kulis, P ^{[1
]}

Tale, I ^{[1
]}

Springis, M ^{[1
]}

Rogulis, U ^{[1
]}

Trokss, J ^{[1
]}

Veispals, A ^{[1
]}

Fitting, HJ ^{[1
]}

机构：

[1] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia

来源：

DEFECTS AND SURFACE-INDUCED EFFECTS IN ADVANCED PEROVSKITES | 2000年 / 77卷

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigated the electron paramagnetic resonance (EPR), recombination afterglow, thermostimulated luminescence (TSL) and absorption of LiBaF3 perovskites crystals X-irradiated at 80 K The self-trapped hole centre V-K(F-2(-)) oriented along the [110] axis and electron F type (F-A) centres are identified. X-irradiation at temperatures below 200 K results in creation of a long-term temperature-independent afterglow- tunnelling luminescence (TL), with main emission bands at 300, 370 nm and 430 nm. The short wavelength TL bands are associated with the tunnelling recombination of the F type centre with the V-K centre. The thermal stability of V-K centre is estimated to be about 130 K.

引用

页码：393 / 398

页数：6

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