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The transfer of energy between electrons and ions in solids

REVIEW ARTICLE

A P Horsfield1, D R Bowler1,2, H Ness3, C G Sánchez4, T N Todorov5 and A J Fisher1,2

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In this review we consider those processes in condensed matter that involve the irreversible flow of energy between electrons and nuclei that follows from a system being taken out of equilibrium. We survey some of the more important experimental phenomena associated with these processes, followed by a number of theoretical techniques for studying them. The techniques considered are those that can be applied to systems containing many non-equivalent atoms. They include both perturbative approaches (Fermi's Golden Rule and non-equilibrium Green's functions) and molecular dynamics based (the Ehrenfest approximation, surface hopping, semi-classical Gaussian wavefunction methods and correlated electron–ion dynamics). These methods are described and characterized, with indications of their relative merits.


PACS

73.40.Gk Tunneling

73.20.At Surface states, band structure, electron density of states

71.15.Pd Molecular dynamics calculations (Car-Parrinello) and other numerical simulations

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Dates

Issue 4 (April 2006)

Received 6 January 2006

Published 15 March 2006



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