Dissociation of polyatomic ions at surfaces: The influence of mechanical and electronic energy transfer

被引：29

作者：

Koppers, WR ^{[1
]}

Beijersbergen, JHM ^{[1
]}

Tsumori, K ^{[1
]}

Weeding, TL ^{[1
]}

Kistemaker, PG ^{[1
]}

Kleyn, AW ^{[1
]}

机构：

[1] NATL INST FUS SCI,NAGOYA,AICHI 46401,JAPAN

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.53.11207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dissociative scattering of CF3+ ions from a clean Ag(111) surface was explored in the energy range 100-600 eV. Both negative (CF3-, CF2-, and F-) and positive ions (CF+ and C+) were formed,The complete dissociation of the CF3+ molecular ions into C+ fragments was found to be feasible at low (normal) incoming energies. We conclude that the breaking of three C-F bonds is due to concerted electronic and mechanical energy transfer. The azimuthal orientation of the crystal has a large influence on the degree of dissociation, which indicates the importance of direct momentum transfer.

引用

页码：11207 / 11210

页数：4

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