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Electron-phonon scattering in metal clusters
A Arbouet1, C Voisin, D Christofilos
1Centre de Physique Moléculaire Optique et Hertzienne, CNRS and Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France.
Physical Review Letters
|June 6, 2003
Abstract:
Electron-lattice energy exchanges are investigated in gold and silver nanoparticles with sizes ranging from 30 to 2.2 nm embedded in different environments. Femtosecond pump-probe experiments performed in the low-perturbation regime demonstrate a strong increase of the intrinsic electron-phonon interaction for nanoparticles smaller than 10 nm due to a confinement effect.