Complex dielectric function formalism for description of the electron kinetics in swift heavy ion tracks in LiF and Y2O3

被引：8

作者：

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

Rymzhanov, R. A. ^{[3
]}

Volkov, A. E. ^{[3
,4
]}

机构：

[1] TU Kaiserslautern, D-67663 Kaiserslautern, Germany

[2] OPTIMAS Res Ctr, D-67663 Kaiserslautern, Germany

[3] JINR, Dubna 141980, Moscow Region, Russia

[4] Natl Res Ctr Kurchatov Inst, Moscow 123182, Russia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2013年 / 315卷

关键词：

Swift heavy ion track; Inelastic mean free path; Electron excitations; Complex dielectric function; Ion energy loss; Monte Carlo simulations; SIMULATION;

D O I：

10.1016/j.nimb.2013.04.090

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Complex dielectric function formalism is applied to obtain the cross-sections, mean free path of electrons, and energy losses of swift heavy ions (SHI) in solid LiF and Y2O3 out of the experimentally known loss function. The calculated electron inelastic mean free paths in these materials agree very well with the NIST database; the inelastic energy losses of swift Pb and Au ions agree well with those calculated with the widely used SRIM and CasP codes. The obtained cross-sections are used in Monte Carlo simulations of the electronic kinetics after SHI impacts. The radial distributions of the electron and valence hole densities as well as their energy densities were calculated. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：85 / 89

页数：5

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