Femtosecond dynamics - snapshots of the early ion-track evolution (vol 225, pg 4, 2004)

被引：61

作者：

Schiwietz, G

Czerski, K

Roth, M

Staufenbiel, F

Grande, PL

机构：

[1] Hahn Meitner Inst Berlin GmbH, Abt SF4, D-14109 Berlin, Germany

[2] Univ Fed Rio Grande Sul, Inst Fis, BR-91500 Porto Alegre, RS, Brazil

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2004年 / 226卷 / 04期

关键词：

D O I：

10.1016/j.nimb.2004.09.006

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The energy dissipation and femtosecond dynamics due to fast heavy ions in matter is critically reviewed with emphasis on possible mechanisms that lead to material modifications. Starting from a discussion of the initial electronic energy-deposition processes, three basic mechanisms for the conversion of electronic into atomic energy are investigated by means of Auger-electron spectroscopy. Results for amorphous Si, amorphous C and polypropylene are presented and discussed. Experimental evidence for a highly charged track region as well as for hot electrons inside tracks is shown. As follows mainly from Auger-electron spectroscopy, there are strong indications for different track-production mechanisms in different materials. (C) 2004 Elsevier B.V. All rights reserved.

引用

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页码：682 / 704

页数：23

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