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arXiv · 0709.0815

Nonequilibrium Electron Interactions in Metal Films

Natalia Del Fatti·Roland Bouffanais·Fabrice Vallée·Christos Flytzanis
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Abstract

Ultrafast relaxation dynamics of an athermal electron distribution is investigated in silver films using a femtosecond pump-probe technique with 18 fs pulses in off-resonant conditions. The results yield evidence for an increase with time of the electron-gas energy loss rate to the lattice and of the free electron damping during the early stages of the electron-gas thermalization. These effects are attributed to transient alterations of the electron average scattering processes due to the athermal nature of the electron gas, in agreement with numerical simulations.

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Natalia Del Fatti, Roland Bouffanais, Fabrice Vallée, Christos Flytzanis. 2007-09-06. Nonequilibrium Electron Interactions in Metal Films. https://doi.org/10.1103/physrevlett.81.922

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