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Dynamic ion structure factor of warm dense matter
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Vorberger, Jan, Donko, Z., Tkachenko, I. M. and Gericke, Dirk O. (2012) Dynamic ion structure factor of warm dense matter. Physical Review Letters, Vol.109 (No.22). Article no. 225001 . doi:10.1103/PhysRevLett.109.225001 ISSN 0031-9007.
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WRAP_Vorberger_050213-skw_prl_c.pdf - Accepted Version Download (438Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevLett.109.225001
Abstract
The dynamics of the ion structure in warm dense matter is determined by molecular dynamics simulations using an effective ion-ion potential. This potential is obtained from ab initio simulations and has a strong short-range repulsion added to a screened Coulomb potential. Models based on static or dynamic local field corrections are found to be insufficient to describe the data. An extended Mermin approach, a hydrodynamic model, and the method of moments with local constraints are capable of reproducing the numerical results but have rather limited predictive powers as they all need some numerical data as input. The method of moments is found to be the most promising.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Ionic structure, Molecular dynamics -- Simulation methods, Ion-ion collisions | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.109 | ||||
Number: | No.22 | ||||
Number of Pages: | 5 | ||||
Page Range: | Article no. 225001 | ||||
DOI: | 10.1103/PhysRevLett.109.225001 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Date of first compliant deposit: | 1 August 2016 | ||||
Date of first compliant Open Access: | 1 August 2016 | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Országos Tudományos Kutatási Alapprogramok [Hungarian Scientific Research Fund] (OTKA), Spain. Ministerio de Ciencia e Innovación (MICINN) | ||||
Grant number: | EP/I014888/1 (EPSRC), K77653 (OTKA), IN85261 (OTKA), K105476 (OTKA), ENE2010-21116-C02-02 (MICINN) |
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