Simulation of ballistic effects during scattering under glancing angles of incidence from crystal surfaces

被引：21

作者：

Danailov, DM

OConnor, DJ

Snowdon, KJ

机构：

[1] UNIV NEWCASTLE,DEPT PHYS,NEWCASTLE,NSW 2308,AUSTRALIA

[2] INST OBERFLACHENMODIFIZIERUNG EV,D-04303 LEIPZIG,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 347卷 / 1-2期

关键词：

computer simulations; copper; helium; ion-solid interactions; scattering; channeling; molecular dynamics; semiempirical models and model calculations; xenon;

D O I：

10.1016/0039-6028(95)00933-7

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：

A direct comparison of the results of molecular dynamics (MD) and sequential binary collision (BCA) simulations of the scattering of 3 keV light (He) and heavy (Xe) particles from a Cu(111) surface along the [1 (1) over bar 0] direction under glancing incidence conditions is presented. Inelastic energy losses are neglected. Clear differences between the MD and BCA results are seen in the differential scattering distributions. The origin of these differences arises from approximations in the way ''simultaneous'' collisions between the projectile and several nearby surface atoms are treated in BCA-type simulations.

引用

收藏

页码：215 / 227

页数：13

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