On the origin of Ne2+ production in low-energy Ne+ scattering from Al and Si surfaces

被引：11

作者：

Ascione, F ^{[1
]}

Manico, G ^{[1
]}

Bonanno, A ^{[1
]}

Oliva, A ^{[1
]}

Xu, F ^{[1
]}

机构：

[1] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata, CS, Italy

来源：

SURFACE SCIENCE | 1997年 / 394卷 / 1-3期

关键词：

aluminum; atom-solid scattering inelastic; ion-solid interactions; low energy ion scattering; noble gases; silicon;

D O I：

10.1016/S0039-6028(97)00789-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report an investigation on the inelastic energy loss of doubly charged Ne2+ ions produced in the single scattering of Ne+ from Al and Si surfaces. The inelasticity of 86 +/- 5 eV found in the binary encounter agrees well with the energy needed to excite two electrons from Ne+ to Ne2+*. Our results suggest that direct decay or autoionization decay of Ne+** formed subsequently by capturing one electron from the solid is the main mechanism for the production of Ne2+ detected in ion-scattering spectroscopy. (C) 1997 Elsevier Science B.V.

引用

页码：L145 / L149

页数：5

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