Screening of ionic cores in partially ionized plasmas within linear response

被引：49

作者：

Gericke, D. O. ^{[1
]}

Vorberger, J. ^{[1
]}

Wuensch, K. ^{[1
]}

Gregori, G. ^{[2
]}

机构：

[1] Univ Warwick, Dept Phys, Ctr Fus Space & Astrophys, Coventry CV4 7AL, W Midlands, England

[2] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW E | 2010年 / 81卷 / 06期

基金：

英国工程与自然科学研究理事会; 英国科学技术设施理事会;

关键词：

INITIO MOLECULAR-DYNAMICS; RAY THOMSON SCATTERING; LIQUID-METALS;

D O I：

10.1103/PhysRevE.81.065401

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We employ a pseudopotential approach to investigate the screening of ionic cores in partially ionized plasmas. Here, the effect of the tightly bound electrons is condensed into an effective potential between the (free) valence electrons and the ionic cores. Even for weak electron-ion coupling, the corresponding screening clouds show strong modifications from the Debye result for elements heavier than helium. Modifications of the theoretically predicted x-ray scattering signal and implications on measurements are discussed.

引用

页数：4

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