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Title: First-Principles Determination of Electron-Ion Couplings in the Warm Dense Matter Regime

Journal Article · · Physical Review Letters

We present first-principles calculations of the rate of energy exchanges between electrons and ions in nonequilibrium warm dense plasmas, liquid metals and hot solids, a fundamental property for which various models offer diverging predictions. To this end, a Kubo relation for the electron-ion coupling parameter is introduced, which includes self-consistently the quantum, thermal, non-linear and strong coupling effects that coexist in materials at the confluence of solids and plasmas. Most importantly, like other Kubo relations widely used for calculating electronic conductivities, the expression can be evaluated using quantum molecular dynamics simulations. Results are presented and compared to experimental and theoretical predictions for representative materials of various electronic complexity, including aluminum, copper, iron and nickel.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
89233218CNA000001; 20170490ER
OSTI ID:
1544699
Alternate ID(s):
OSTI ID: 1515594
Report Number(s):
LA-UR-19-22811
Journal Information:
Physical Review Letters, Vol. 122, Issue 20; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (46)

Evidence for out-of-equilibrium states in warm dense matter probed by x-ray Thomson scattering journal January 2015
Generalized Gradient Approximation Made Simple journal October 1996
Outstanding questions in electron-ion energy relaxation, lattice stability, and dielectric function of warm dense matter journal September 2011
Measurement of Electron-Ion Relaxation in Warm Dense Copper journal January 2016
Observation of Ultrafast Nonequilibrium Collective Dynamics in Warm Dense Hydrogen journal March 2010
Temperature relaxation in two-temperature states of dense electron-ion systems journal November 2001
Projector augmented-wave method journal December 1994
Atomic-Scale Visualization of Inertial Dynamics journal April 2005
Evolution of ac Conductivity in Nonequilibrium Warm Dense Gold journal March 2013
Electron-phonon coupling and electron heat capacity of metals under conditions of strong electron-phonon nonequilibrium journal February 2008
Electrical conductivity for warm, dense aluminum plasmas and liquids journal August 2002
Non-equilibrium solid-to-plasma transition dynamics using XANES diagnostic journal October 2016
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Theory of thermal relaxation of electrons in metals journal September 1987
Inhomogeneous Electron Gas journal November 1964
Femtosecond dynamics of the laser-induced solid-to-liquid phase transition in aluminum journal June 2007
Correlation effects on the temperature-relaxation rates in dense plasmas journal May 2009
The Formation of Warm Dense Matter: Experimental Evidence for Electronic Bond Hardening in Gold journal February 2009
Role of electron-phonon coupling in femtosecond laser damage of metals conference September 1998
Electronic transport coefficients from ab initio simulations and application to dense liquid hydrogen journal June 2011
Non-thermal melting in semiconductors measured at femtosecond resolution journal March 2001
Theory of electron-ion energy transfer applied to laser ablation conference January 2012
Results on the energy-relaxation rates of dense two-temperature aluminum, carbon, and silicon plasmas close to liquid-metal conditions journal August 2001
Electronically Driven Structure Changes of Si Captured by Femtosecond Electron Diffraction journal April 2008
Ultrafast Short-Range Disordering of Femtosecond-Laser-Heated Warm Dense Aluminum journal December 2013
Self-interaction correction to density-functional approximations for many-electron systems journal May 1981
Ab initio modeling of nonequilibrium electron-ion dynamics of iron in the warm dense matter regime journal June 2018
Effect of the liquid-like ionic structure on the electron–ion energy relaxation timescales in dense plasmas journal April 2008
Ion dynamics and energy relaxation rate in nonequilibrium electron-ion systems journal February 2007
Ab initio determination of effective electron–phonon coupling factor in copper journal April 2016
Thermal conduction in laser fusion journal June 1975
Molecular dynamics simulations at constant pressure and/or temperature journal February 1980
Advanced capabilities for materials modelling with Quantum ESPRESSO journal October 2017
Electron-ion equilibration in a strongly coupled plasma journal October 1995
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Effect of Intense Laser Irradiation on the Lattice Stability of Semiconductors and Metals journal February 2006
An Atomic-Level View of Melting Using Femtosecond Electron Diffraction journal November 2003
Thermophysical Properties of Liquid Aluminum journal March 2017
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Femtosecond dynamics of the laser-induced solid-to-liquid phase transition in aluminum conference May 2007
Advanced capabilities for materials modelling with Quantum ESPRESSO text January 2017
Femtosecond dynamics of the laser-induced solid-to-liquid phase transition in aluminum conference May 2007
Electron-phonon coupling and energy flow in a simple metal beyond the two-temperature approximation text January 2015
Ab initio determination of effective electron-phonon coupling factor in copper text January 2016
Non-Adiabatic Quantum Molecular Dynamics with Detailed Balance text January 2017
Advanced capabilities for materials modelling with Quantum ESPRESSO text January 2017

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