Stopping of Deuterium in Warm Dense Deuterium from Ehrenfest Time-Dependent Density Functional Theory

被引：27

作者：

Magyar, R. J. ^{[1
]}

Shulenburger, L. ^{[1
]}

Baczewski, A. D. ^{[1
]}

机构：

[1] Sandia Natl Labs, Multiscale Phys, 1444 MS 1322, Albuquerque, NM 87185 USA

来源：

CONTRIBUTIONS TO PLASMA PHYSICS | 2016年 / 56卷 / 05期

关键词：

Stopping power; Electronic Structure Calculations; TDDFT; WDM; POWER-TABLES; PARTICLES; SIMULATION; VELOCITY;

D O I：

10.1002/ctpp.201500143

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：

In these proceedings, we show that time-dependent density functional theory is capable of stopping calculations at the extreme conditions of temperature and pressure seen in warm dense matter. The accuracy of the stopping curves tends to be up to about 20% lower than empirical models that are in use. However, TDDFT calculations are free from fitting parameters and assumptions about the model form of the dielectric function. This work allows the simulation of ion stopping in many materials that are difficult to study experimentally. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：459 / 466

页数：8

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