Stopping of slow ions in the electron selvedge of a metal surface

被引：36

作者：

Winter, H ^{[1
]}

Auth, C ^{[1
]}

Mertens, A ^{[1
]}

Kirste, A ^{[1
]}

Steiner, MJ ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

来源：

EUROPHYSICS LETTERS | 1998年 / 41卷 / 04期

关键词：

D O I：

10.1209/epl/i1998-00170-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From studies on the energy loss of fast atomic projectiles (v = 0.5 v(0)) ranging from protons to potassium ions in the scattering from a clean and flat Al(111)-surface under a grazing angle of incidence, we derive stopping powers as a function of distance from the surface plane. We observe that oscillations for the stopping powers with atomic number Z(1) show a pronounced dependence on the electron density as predicted by nonlinear density-functional calculations. For sufficiently low electron densities, those oscillations follow the intuitive picture in showing minima of stopping for projectiles with noble-gas configurations.

引用

页码：437 / 442

页数：6

共 21 条

[1]

Bottiger J., 1970, Radiation Effects, V2, P105, DOI 10.1080/00337576908235591

[2]

Echenique P.M., 1990, SOLID STATE PHYS, V43, P230

[3] DENSITY FUNCTIONAL CALCULATION OF STOPPING POWER OF AN ELECTRON-GAS FOR SLOW IONS [J].