White, T. G., Mabey, P., Gericke, Dirk O., Hartley, N. J., Doyle, H. W., McGonegle, D., Rackstraw, D. S., Higginbotham, A. and Gregori, Gianluca (2014) Electron-phonon equilibration in laser-heated gold films. Physical Review B (Condensed Matter and Materials Physics), Volume 90 (Number 1). Article number 014305 . doi:10.1103/PhysRevB.90.014305 ISSN 1098-0121.

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Abstract

By irradiating a thin metal foil with an intense short-pulse laser, we have created a uniform system far from equilibrium. The deposited energy is initially deposited only within the electronic subsystem, and the subsequent evolution of the system is determined by the details of the electron-phonon coupling. Here, we measure the time evolution of the lattice parameter through multilayer Bragg diffraction and compare the result to classical molecular dynamic simulations to determine the lattice temperature. The electron-ion coupling constant for gold is then determined by comparison with the evolution of a two-temperature electron-phonon system.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review B (Condensed Matter and Materials Physics)
Publisher:	American Physical Society
ISSN:	1098-0121
Official Date:	23 July 2014
Dates:	Date Event 23 July 2014 Published 22 April 2014 Submitted
Volume:	Volume 90
Number:	Number 1
Article Number:	Article number 014305
DOI:	10.1103/PhysRevB.90.014305
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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