Color centers and structural damage in LiF induced by 150 MeV Kr ions

被引：2
作者：
Rusakova, A. [2 ]
Maniks, J. [1 ]
Schwartz, K. [3 ]
Dauletbekova, A. [1 ,2 ]
Akilbekov, A. [1 ,2 ]
Lisitsin, V. [4 ]
Zdorovets, M.
机构：
[1] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia
[2] LN Gumilyov Eurasian Natl Univ, Astana, Kazakhstan
[3] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
[4] Tomsk State Univ, Tomsk, Russia
来源：
INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS AND NANOTECHNOLOGIES (FM&NT2012) | 2012年 / 38卷
关键词：
CREATION; CRYSTALS;
D O I：
10.1088/1757-899X/38/1/012040
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Color centers and evolution of structure defects were investigated in LiF crystals irradiated at room temperature with 150 MeV Kr-84 ions with a beam current of 10nA/cm(2) in the fluence range 10(11) - 10(14) ions/cm(2) at the cyclotron accelerator DC-60 (Astana, Kazakhstan). At the fluence of 10(11) ions/cm(2), SEM imaging revealed mainly formation of etchable ion tracks. Above this fluence, severe structural modifications in the irradiated layer were observed which include the ion-induced formation of dislocations and grains with nano-scale dimensions. The role of fluence in the concentration of electronic color centers and structural modifications is discussed.
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