Screening of ionic cores in partially ionized plasmas within linear response

被引:48
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
英国科学技术设施理事会; 英国工程与自然科学研究理事会;
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
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页数:4
相关论文
共 40 条
[1]  
Ashcroft N., 2011, Solid State Physics
[2]  
ASHCROFT NW, 1978, SOLID STATE PHYS, V33, P1
[3]   DENSITY FUNCTIONAL CALCULATION OF THE ELECTRONEGATIVITY AND OTHER RELATED PROPERTIES OF ATOMS AND IONS OF THE PRINCIPAL GROUPS OF THE PERIODIC TABLE [J].
BALBAS, LC ;
VEGA, LA ;
ALONSO, JA .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1984, 319 (03) :275-282
[4]   STATISTICAL-MECHANICS OF A 2-TEMPERATURE, CLASSICAL PLASMA [J].
BOERCKER, DB ;
MORE, RM .
PHYSICAL REVIEW A, 1986, 33 (03) :1859-1869
[5]   PATH-INTEGRALS IN THE THEORY OF CONDENSED HELIUM [J].
CEPERLEY, DM .
REVIEWS OF MODERN PHYSICS, 1995, 67 (02) :279-355
[6]   EFFECTIVE INTERIONIC INTERACTION IN LIQUID-METALS - LIQUID METALLIC HYDROGEN [J].
CHIHARA, J .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (11) :1665-1677
[7]   Interaction of photons with plasmas and liquid metals-photoabsorption and scattering [J].
Chihara, J .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (03) :231-247
[8]   Simple classical mapping of the spin-polarized quantum electron gas: Distribution functions and local-field corrections [J].
Dharma-Wardana, MWC ;
Perrot, F .
PHYSICAL REVIEW LETTERS, 2000, 84 (05) :959-962
[9]   Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas [J].
Fortmann, Carsten ;
Wierling, August ;
Roepke, Gerd .
PHYSICAL REVIEW E, 2010, 81 (02)
[10]   Observations of plasmons in warm dense matter [J].
Glenzer, S. H. ;
Landen, O. L. ;
Neumayer, P. ;
Lee, R. W. ;
Widmann, K. ;
Pollaine, S. W. ;
Wallace, R. J. ;
Gregori, G. ;
Hoell, A. ;
Bornath, T. ;
Thiele, R. ;
Schwarz, V. ;
Kraeft, W. -D. ;
Redmer, R. .
PHYSICAL REVIEW LETTERS, 2007, 98 (06)