Molecular dynamic simulations of ions in electron plasmas at strong coupling

被引：33

作者：

Zwicknagel, G ^{[1
]}

Toepffer, C ^{[1
]}

Reinhard, PG ^{[1
]}

机构：

[1] UNIV ERLANGEN NURNBERG,INST THEORET PHYS,D-91058 ERLANGEN,GERMANY

来源：

HYPERFINE INTERACTIONS | 1996年 / 99卷 / 1-3期

关键词：

D O I：

10.1007/BF02274932

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Molecular dynamic (MD) computer simulations are used to investigate the stopping of heavy ions in strongly coupled electron plasmas. Our results show, that in this regime collisions between the electrons as well as non-linear screening effects yield at low ion velocities a dependence of the stopping power on the ion charge Z which scales like Z(1.43) instead of the usual Z(2) In(const/Z)-scaling for weak coupling. This is connected with an enhanced local density of electrons around a highly charged, slow ion.

引用

页码：285 / 291

页数：7

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