Collision induced fragmentation of small sodium cluster ions

被引：13

作者：

Barat, M

Brenot, JC

Dunet, H

Fayeton, JA

机构：

[1] Laboratoire des Collisions Atomiques et Moléculaires, Unité de Recherche Associée au CNRS No. 281, Université Paris-Sud XI

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1997年 / 40卷 / 1-4期

关键词：

D O I：

10.1007/s004600050218

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The basic mechanisms of collision induced fragmentation of small sodium cluster ions (Na-n(+) n < 9) at keV collision energy are investigated by measuring the velocity vectors of the two fragments employing a new type of coincidence experiment. The results suggest that in most of the cases the lost of one Na atom can be interpreted as relevant of an impulsive mechanism. On the other hand, the lost of one Na+ ion seems to require transition to an electronically excited state of the cluster.

引用

页码：323 / 326

页数：4

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