Excitation and Relaxation of Swift Heavy Ion Irradiated Dielectrics

被引：6

作者：

Osmani, O. ^{[1
,2
,3
,4
]}

Medvedev, N. ^{[1
,2
]}

Schleberger, M. ^{[3
,4
]}

Rethfeld, B. ^{[1
,2
]}

机构：

[1] Tech Univ Kaiserslautern, Dept Phys, D-67653 Kaiserslautern, Germany

[2] Tech Univ Kaiserslautern, OPTIMAS Res Ctr, D-67653 Kaiserslautern, Germany

[3] Univ Duisburg Essen, Fac Phys, D-47048 Duisburg, Germany

[4] CeNIDE, D-47048 Duisburg, Germany

来源：

E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY | 2010年 / 8卷

关键词：

Non-equilibrium thermodynamics and statistical mechanics; Swift heavy ions; Dielectrics;

D O I：

10.1380/ejssnt.2010.278

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The structural modifications of insulators after swift heavy ion irradiation are studied by applying a combination of the Monte-Carlo method (MC), used to describe the excitation and relaxation induced by the penetrating ion in the electronic subsystem, with the two temperature model (TTM) describing the temporal evolution of the lattice temperature heated by the hot electronic system. This MC-TTM combination demonstrates that secondary ionizations play a very important role for the track formation process and is capable to compute important material parameters which are often unaccessible by experiments. It is found that the secondary electron generation leads to an additional energy source in the heat diffusion equation related to energy storage in holes.

引用

页码：278 / 282

页数：5

共 37 条

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