OBSERVATION OF SKIPPING MOTION

被引：5

作者：

PFANDZELTER, R

STOLZLE, F

机构：

[1] Sektion Physik, Universität München, D-8000 München 40

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1992年 / 67卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(92)95833-D

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The observation of skipping motion due to the dynamical image potential is reported. We have studied the scattering of a few tens of keV H+ and He+ from a C(0001) surface under grazing angles of incidence. The energy spectra of the scattered H+ exhibit several discrete energy-loss peaks. The spacing between any two neighbouring peaks is nearly the same as the difference between the energy of the first peak and the incident energy., With increasing incidence angle, the skipping peaks grow weaker and eventually disappear at a critical angle, which is in good agreement with the theoretical estimate. The skipping peaks for He+ are weaker, which is ascribed to the large neutralization probability at low ion velocities.

引用

收藏

页码：355 / 358

页数：4

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